$ git clone -n https://src.fedoraproject.org/rpms/protontricks.git /var/lib/mock/f45-build-53668-928/root/chroot_tmpdir/scmroot/protontricks
Cloning into '/var/lib/mock/f45-build-53668-928/root/chroot_tmpdir/scmroot/protontricks'...
$ git fetch origin f62b89543419c3f512c6bdaba3898de91f4384ff:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/protontricks
 * [new ref]         f62b89543419c3f512c6bdaba3898de91f4384ff -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f62b895 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild