$ git clone -n https://src.fedoraproject.org/rpms/luv-icon-theme.git /var/lib/mock/f45-build-17736-503/root/chroot_tmpdir/scmroot/luv-icon-theme
Cloning into '/var/lib/mock/f45-build-17736-503/root/chroot_tmpdir/scmroot/luv-icon-theme'...
$ git fetch origin 1ffc427f48bb3ed03a6cbff81f62d8e70e2d9025:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/luv-icon-theme
 * [new ref]         1ffc427f48bb3ed03a6cbff81f62d8e70e2d9025 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ffc427 Update to v0.8.4