$ git clone -n https://src.fedoraproject.org/rpms/gnome-screenshot.git /var/lib/mock/f45-build-11483-432/root/chroot_tmpdir/scmroot/gnome-screenshot
Cloning into '/var/lib/mock/f45-build-11483-432/root/chroot_tmpdir/scmroot/gnome-screenshot'...
$ git fetch origin d1dadb4d8d1eef6f150429eaaf650d3a6c189df4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-screenshot
 * [new ref]         d1dadb4d8d1eef6f150429eaaf650d3a6c189df4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d1dadb4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild