$ git clone -n https://src.fedoraproject.org/rpms/hdhomerun.git /var/lib/mock/f41-build-side-1-2751082-31089/root/chroot_tmpdir/scmroot/hdhomerun
Cloning into '/var/lib/mock/f41-build-side-1-2751082-31089/root/chroot_tmpdir/scmroot/hdhomerun'...
$ git fetch origin af2f0c281d0d5c3e185d70b2533458db482634fd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hdhomerun
 * [new ref]         af2f0c281d0d5c3e185d70b2533458db482634fd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at af2f0c2 Gtk2 is now built and managed in epel, refactor to accomodate this change