$ git clone -n https://src.fedoraproject.org/rpms/rust-strum.git /var/lib/mock/f39-build-1455625-32918/root/chroot_tmpdir/scmroot/rust-strum
Cloning into '/var/lib/mock/f39-build-1455625-32918/root/chroot_tmpdir/scmroot/rust-strum'...
$ git fetch origin c4cd902103155180ced04c072d7f871157746a7b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-strum
 * [new ref]         c4cd902103155180ced04c072d7f871157746a7b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c4cd902 Update to 0.25.0