revert(3p/git): Revert merge of git upstream at v2.26.2

This causes cgit to serve error pages, which is undesirable.

This reverts commit 5229c9b232, reversing
changes made to f2b211131f.

third_party/git/t/t5510-fetch.sh

@@ -11,7 +11,7 @@ D=$(pwd)
 
 test_bundle_object_count () {
 	git verify-pack -v "$1" >verify.out &&
-	test "$2" = $(grep "^$OID_REGEX " verify.out | wc -l)
+	test "$2" = $(grep '^[0-9a-f]\{40\} ' verify.out | wc -l)
 }
 
 convert_bundle_to_pack () {
@@ -174,30 +174,6 @@ test_expect_success 'fetch --prune --tags with refspec prunes based on refspec'
 	git rev-parse sometag
 '
 
-test_expect_success '--refmap="" ignores configured refspec' '
-	cd "$TRASH_DIRECTORY" &&
-	git clone "$D" remote-refs &&
-	git -C remote-refs rev-parse remotes/origin/master >old &&
-	git -C remote-refs update-ref refs/remotes/origin/master master~1 &&
-	git -C remote-refs rev-parse remotes/origin/master >new &&
-	git -C remote-refs fetch --refmap= origin "+refs/heads/*:refs/hidden/origin/*" &&
-	git -C remote-refs rev-parse remotes/origin/master >actual &&
-	test_cmp new actual &&
-	git -C remote-refs fetch origin &&
-	git -C remote-refs rev-parse remotes/origin/master >actual &&
-	test_cmp old actual
-'
-
-test_expect_success '--refmap="" and --prune' '
-	git -C remote-refs update-ref refs/remotes/origin/foo/otherbranch master &&
-	git -C remote-refs update-ref refs/hidden/foo/otherbranch master &&
-	git -C remote-refs fetch --prune --refmap="" origin +refs/heads/*:refs/hidden/* &&
-	git -C remote-refs rev-parse remotes/origin/foo/otherbranch &&
-	test_must_fail git -C remote-refs rev-parse refs/hidden/foo/otherbranch &&
-	git -C remote-refs fetch --prune origin &&
-	test_must_fail git -C remote-refs rev-parse remotes/origin/foo/otherbranch
-'
-
 test_expect_success 'fetch tags when there is no tags' '
 
     cd "$D" &&
@@ -285,10 +261,9 @@ test_expect_success 'create bundle 1' '
 '
 
 test_expect_success 'header of bundle looks right' '
-	head -n 4 "$D"/bundle1 &&
 	head -n 1 "$D"/bundle1 | grep "^#" &&
-	head -n 2 "$D"/bundle1 | grep "^-$OID_REGEX " &&
-	head -n 3 "$D"/bundle1 | grep "^$OID_REGEX " &&
+	head -n 2 "$D"/bundle1 | grep "^-[0-9a-f]\{40\} " &&
+	head -n 3 "$D"/bundle1 | grep "^[0-9a-f]\{40\} " &&
 	head -n 4 "$D"/bundle1 | grep "^$"
 '
 
@@ -314,7 +289,7 @@ test_expect_success 'bundle 1 has only 3 files ' '
 test_expect_success 'unbundle 2' '
 	cd "$D/bundle" &&
 	git fetch ../bundle2 master:master &&
-	test "tip" = "$(git log -1 --pretty=oneline master | cut -d" " -f2)"
+	test "tip" = "$(git log -1 --pretty=oneline master | cut -b42-)"
 '
 
 test_expect_success 'bundle does not prerequisite objects' '
@@ -379,6 +354,7 @@ test_expect_success 'fetch from GIT URL with a non-applying branch.<name>.merge
 # the strange name is: a\!'b
 test_expect_success 'quoting of a strangely named repo' '
 	test_must_fail git fetch "a\\!'\''b" > result 2>&1 &&
+	cat result &&
 	grep "fatal: '\''a\\\\!'\''b'\''" result
 '
 
@@ -594,35 +570,6 @@ test_expect_success 'LHS of refspec follows ref disambiguation rules' '
 	)
 '
 
-test_expect_success 'fetch.writeCommitGraph' '
-	git clone three write &&
-	(
-		cd three &&
-		test_commit new
-	) &&
-	(
-		cd write &&
-		git -c fetch.writeCommitGraph fetch origin &&
-		test_path_is_file .git/objects/info/commit-graphs/commit-graph-chain
-	)
-'
-
-test_expect_success 'fetch.writeCommitGraph with submodules' '
-	git clone dups super &&
-	(
-		cd super &&
-		git submodule add "file://$TRASH_DIRECTORY/three" &&
-		git commit -m "add submodule"
-	) &&
-	git clone "super" super-clone &&
-	(
-		cd super-clone &&
-		rm -rf .git/objects/info &&
-		git -c fetch.writeCommitGraph=true fetch origin &&
-		test_path_is_file .git/objects/info/commit-graphs/commit-graph-chain
-	)
-'
-
 # configured prune tests
 
 set_config_tristate () {
@@ -955,29 +902,6 @@ test_expect_success C_LOCALE_OUTPUT 'fetch compact output' '
 	test_cmp expect actual
 '
 
-test_expect_success '--no-show-forced-updates' '
-	mkdir forced-updates &&
-	(
-		cd forced-updates &&
-		git init &&
-		test_commit 1 &&
-		test_commit 2
-	) &&
-	git clone forced-updates forced-update-clone &&
-	git clone forced-updates no-forced-update-clone &&
-	git -C forced-updates reset --hard HEAD~1 &&
-	(
-		cd forced-update-clone &&
-		git fetch --show-forced-updates origin 2>output &&
-		test_i18ngrep "(forced update)" output
-	) &&
-	(
-		cd no-forced-update-clone &&
-		git fetch --no-show-forced-updates origin 2>output &&
-		test_i18ngrep ! "(forced update)" output
-	)
-'
-
 setup_negotiation_tip () {
 	SERVER="$1"
 	URL="$2"
@@ -1054,7 +978,27 @@ test_expect_success '--negotiation-tip limits "have" lines sent with HTTP protoc
 	check_negotiation_tip
 '
 
-# DO NOT add non-httpd-specific tests here, because the last part of this
-# test script is only executed when httpd is available and enabled.
+test_expect_success '--no-show-forced-updates' '
+	mkdir forced-updates &&
+	(
+		cd forced-updates &&
+		git init &&
+		test_commit 1 &&
+		test_commit 2
+	) &&
+	git clone forced-updates forced-update-clone &&
+	git clone forced-updates no-forced-update-clone &&
+	git -C forced-updates reset --hard HEAD~1 &&
+	(
+		cd forced-update-clone &&
+		git fetch --show-forced-updates origin 2>output &&
+		test_i18ngrep "(forced update)" output
+	) &&
+	(
+		cd no-forced-update-clone &&
+		git fetch --no-show-forced-updates origin 2>output &&
+		! test_i18ngrep "(forced update)" output
+	)
+'
 
 test_done