$ git clone -n https://src.fedoraproject.org/rpms/zram.git /var/lib/mock/f45-build-39389-734/root/chroot_tmpdir/scmroot/zram
Cloning into '/var/lib/mock/f45-build-39389-734/root/chroot_tmpdir/scmroot/zram'...
$ git fetch origin b86b6763624437440811b2d1641ad489f9f32980:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/zram
 * [new ref]         b86b6763624437440811b2d1641ad489f9f32980 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b86b676 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild