Git Stash brake splitIndex

Hi folks,

I am on git version 2.26.2.526.g744177e7f7 (latest next) When you do a git stash while using splitIndex, it seems like the index will get corrupted

Using configs: core.splitindex=true splitindex.maxpercentchange=50 splitindex.sharedindexexpire=now

Reproduce steps:

mkdir repo cd repo && git init echo a > a commit -a -m 'add a' echo b > b git add b git stash Saved working directory and index state WIP on master: 1955b62 add a fatal: .git/sharedindex.8ddd8dad6ccb4858f27d4ff20f4d8bf6654441e0: index file open failed: No such file or directory

Some traces: master ~/test/git/repo> GIT_TRACE2=1 GIT_TRACE2_NESTING=5 git stash 15:18:15.442295 common-main.c:48 version 2.26.2.526.g744177e7f7 15:18:15.442914 common-main.c:49 start git stash 15:18:15.443284 repository.c:134 worktree /Users/sluongngoc/test/git/repo 15:18:15.443491 git.c:442 cmd_name stash (stash) 15:18:15.448579 run-command.c:735 child_start[0] git update-index --ignore-skip-worktree-entries -z --add --remove --stdin 15:18:15.455972 common-main.c:48 version 2.26.2.526.g744177e7f7 15:18:15.456514 common-main.c:49 start /Users/sluongngoc/libexec/git-core/git update-index --ignore-skip-worktree-entries -z --add --remove --stdin 15:18:15.456788 repository.c:134 worktree /Users/sluongngoc/test/git/repo 15:18:15.456927 git.c:442 cmd_name update-index (stash/update-index) 15:18:15.458444 git.c:672 exit elapsed:0.004021 code:0 15:18:15.458457 trace2/tr2_tgt_normal.c:123 atexit elapsed:0.004039 code:0 15:18:15.458774 run-command.c:990 child_exit[0] pid:1813 code:0 elapsed:0.010169 Saved working directory and index state WIP on master: 1955b62 add a 15:18:15.461082 run-command.c:735 child_start[1] git reset --hard -q --no-recurse-submodules 15:18:15.467260 common-main.c:48 version 2.26.2.526.g744177e7f7 15:18:15.467553 common-main.c:49 start /Users/sluongngoc/libexec/git-core/git reset --hard -q --no-recurse-submodules 15:18:15.467931 repository.c:134 worktree /Users/sluongngoc/test/git/repo 15:18:15.468071 git.c:442 cmd_name reset (stash/reset) 15:18:15.468555 usage.c:64 error .git/sharedindex.8ddd8dad6ccb4858f27d4ff20f4d8bf6654441e0: index file open failed: No such file or directory fatal: .git/sharedindex.8ddd8dad6ccb4858f27d4ff20f4d8bf6654441e0: index file open failed: No such file or directory 15:18:15.468587 usage.c:68 exit elapsed:0.002714 code:128 15:18:15.468595 trace2/tr2_tgt_normal.c:123 atexit elapsed:0.002726 code:128 15:18:15.468889 run-command.c:990 child_exit[1] pid:1814 code:128 elapsed:0.007797 15:18:15.468930 git.c:672 exit elapsed:0.028400 code:1 15:18:15.468947 trace2/tr2_tgt_normal.c:123 atexit elapsed:0.028418 code:1 exit 1

Cheers, Son Luong.