$ git clone -n https://src.fedoraproject.org/rpms/gst-devtools.git /var/lib/mock/f39-build-1848578-42180/root/chroot_tmpdir/scmroot/gst-devtools
Cloning into '/var/lib/mock/f39-build-1848578-42180/root/chroot_tmpdir/scmroot/gst-devtools'...
$ git fetch origin e1c9d20f89d0906f7a30e10c33de3f3aeb44c53b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gst-devtools
 * [new ref]         e1c9d20f89d0906f7a30e10c33de3f3aeb44c53b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e1c9d20 Add gst-debug-viewer