$ git clone -n https://src.fedoraproject.org/rpms/libgusb.git /var/lib/mock/f45-build-16300-485/root/chroot_tmpdir/scmroot/libgusb
Cloning into '/var/lib/mock/f45-build-16300-485/root/chroot_tmpdir/scmroot/libgusb'...
$ git fetch origin c3392b159ecac514cc6454cf27140fc4edf3d155:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libgusb
 * [new ref]         c3392b159ecac514cc6454cf27140fc4edf3d155 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c3392b1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild