$ git clone -n https://src.fedoraproject.org/rpms/rust-priority-queue.git /var/lib/mock/f45-build-44004-809/root/chroot_tmpdir/scmroot/rust-priority-queue
Cloning into '/var/lib/mock/f45-build-44004-809/root/chroot_tmpdir/scmroot/rust-priority-queue'...
$ git fetch origin 18be352995fcdc2ab3dca60e64723a4ce08afc98:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-priority-queue
 * [new ref]         18be352995fcdc2ab3dca60e64723a4ce08afc98 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 18be352 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild