$ git clone -n https://src.fedoraproject.org/rpms/rust-opener0.5.git /var/lib/mock/f40-build-2269178-54759/root/chroot_tmpdir/scmroot/rust-opener0.5
Cloning into '/var/lib/mock/f40-build-2269178-54759/root/chroot_tmpdir/scmroot/rust-opener0.5'...
$ git fetch origin 27fc4188d642a952bc20598a5a08332e4c31736b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-opener0.5
 * [new ref]         27fc4188d642a952bc20598a5a08332e4c31736b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 27fc418 Initial import (opener 0.5 compat package)