$ git clone -n https://src.fedoraproject.org/rpms/libgedit-gtksourceview.git /var/lib/mock/f39-build-1586845-38212/root/chroot_tmpdir/scmroot/libgedit-gtksourceview
Cloning into '/var/lib/mock/f39-build-1586845-38212/root/chroot_tmpdir/scmroot/libgedit-gtksourceview'...
$ git fetch origin 4b0f9f0147e656c1e90bf5a3a8df249a9d3a51d5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libgedit-gtksourceview
 * [new ref]         4b0f9f0147e656c1e90bf5a3a8df249a9d3a51d5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4b0f9f0 Initial build