$ git clone -n https://src.fedoraproject.org/rpms/python-fastpurge.git /var/lib/mock/f39-build-1565765-37583/root/chroot_tmpdir/scmroot/python-fastpurge
Cloning into '/var/lib/mock/f39-build-1565765-37583/root/chroot_tmpdir/scmroot/python-fastpurge'...
$ git fetch origin 668d1bd14414e9ab899517a2ee9ec1a851439267:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-fastpurge
 * [new ref]         668d1bd14414e9ab899517a2ee9ec1a851439267 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 668d1bd Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild