$ git clone -n https://src.fedoraproject.org/rpms/perl-Lingua-Stem.git /var/lib/mock/f39-build-1437743-32160/root/chroot_tmpdir/scmroot/perl-Lingua-Stem
Cloning into '/var/lib/mock/f39-build-1437743-32160/root/chroot_tmpdir/scmroot/perl-Lingua-Stem'...
$ git fetch origin 20debe6366674dd0e2e83916a5321e81274c2755:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Lingua-Stem
 * [new ref]         20debe6366674dd0e2e83916a5321e81274c2755 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 20debe6 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild