$ git clone -n https://src.fedoraproject.org/rpms/rocclr.git /var/lib/mock/f41-build-837328-159026/root/chroot_tmpdir/scmroot/rocclr
Cloning into '/var/lib/mock/f41-build-837328-159026/root/chroot_tmpdir/scmroot/rocclr'...
$ git fetch origin 7b78f3234de36b7633b739e141f479d8c591c183:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rocclr
 * [new ref]         7b78f3234de36b7633b739e141f479d8c591c183 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7b78f32 Update to 6.2