$ git clone -n https://src.fedoraproject.org/rpms/rubygem-shoulda.git /var/lib/mock/f39-build-1913810-42881/root/chroot_tmpdir/scmroot/rubygem-shoulda
Cloning into '/var/lib/mock/f39-build-1913810-42881/root/chroot_tmpdir/scmroot/rubygem-shoulda'...
$ git fetch origin a11fbc88ea6189177190eaf3a933c0af2ddf8734:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-shoulda
 * [new ref]         a11fbc88ea6189177190eaf3a933c0af2ddf8734 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a11fbc8 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild