$ git clone -n https://src.fedoraproject.org/rpms/knemo.git /var/lib/mock/f41-build-725217-13118/root/chroot_tmpdir/scmroot/knemo
Cloning into '/var/lib/mock/f41-build-725217-13118/root/chroot_tmpdir/scmroot/knemo'...
$ git fetch origin 26dfc3a028f7b1dfe1301e891af4b14825e568bc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/knemo
 * [new ref]         26dfc3a028f7b1dfe1301e891af4b14825e568bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 26dfc3a Eliminate use of obsolete %patchN syntax (#2283636)