$ git clone -n https://src.fedoraproject.org/rpms/portreserve.git /var/lib/mock/f39-build-1490579-34507/root/chroot_tmpdir/scmroot/portreserve
Cloning into '/var/lib/mock/f39-build-1490579-34507/root/chroot_tmpdir/scmroot/portreserve'...
$ git fetch origin 472b37fcba99225c333cf29fcbf167fc3151f7e8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/portreserve
 * [new ref]         472b37fcba99225c333cf29fcbf167fc3151f7e8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 472b37f Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild