$ git clone -n https://src.fedoraproject.org/rpms/flatseal.git /var/lib/mock/f40-build-2262633-54513/root/chroot_tmpdir/scmroot/flatseal
Cloning into '/var/lib/mock/f40-build-2262633-54513/root/chroot_tmpdir/scmroot/flatseal'...
$ git fetch origin c77460d20fceba12c57ab9debe83c65e2c08be67:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/flatseal
 * [new ref]         c77460d20fceba12c57ab9debe83c65e2c08be67 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c77460d Add explicit gjs dependency