$ git clone -n https://src.fedoraproject.org/rpms/rust-libpanel-sys.git /var/lib/mock/f45-build-42945-797/root/chroot_tmpdir/scmroot/rust-libpanel-sys
Cloning into '/var/lib/mock/f45-build-42945-797/root/chroot_tmpdir/scmroot/rust-libpanel-sys'...
$ git fetch origin 53c21ff2435068e9ccdf6d09c8c788d07cdba292:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-libpanel-sys
 * [new ref]         53c21ff2435068e9ccdf6d09c8c788d07cdba292 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 53c21ff Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild