$ git clone -n https://src.fedoraproject.org/rpms/pylibacl.git /var/lib/mock/f40-build-734628-105990/root/chroot_tmpdir/scmroot/pylibacl
Cloning into '/var/lib/mock/f40-build-734628-105990/root/chroot_tmpdir/scmroot/pylibacl'...
$ git fetch origin b4b92c3393e1517cc836015450ca5b7acc85bfa6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pylibacl
 * [new ref]         b4b92c3393e1517cc836015450ca5b7acc85bfa6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b4b92c3 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild