$ git clone -n https://src.fedoraproject.org/rpms/ghc-stringsearch.git /var/lib/mock/f40-build-776165-128641/root/chroot_tmpdir/scmroot/ghc-stringsearch
Cloning into '/var/lib/mock/f40-build-776165-128641/root/chroot_tmpdir/scmroot/ghc-stringsearch'...
$ git fetch origin dffbdf12eb57b2b57940fac33c1b6a0f9859eac4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-stringsearch
 * [new ref]         dffbdf12eb57b2b57940fac33c1b6a0f9859eac4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dffbdf1 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild