$ git clone -n https://src.fedoraproject.org/rpms/rttr.git /var/lib/mock/f39-build-1512266-35563/root/chroot_tmpdir/scmroot/rttr
Cloning into '/var/lib/mock/f39-build-1512266-35563/root/chroot_tmpdir/scmroot/rttr'...
$ git fetch origin 52641a12ce5b082a2f1f622789b3cb9602b03e02:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rttr
 * [new ref]         52641a12ce5b082a2f1f622789b3cb9602b03e02 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 52641a1 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild