$ git clone -n https://src.fedoraproject.org/rpms/jansi.git /var/lib/mock/f40-build-2370728-60393/root/chroot_tmpdir/scmroot/jansi
Cloning into '/var/lib/mock/f40-build-2370728-60393/root/chroot_tmpdir/scmroot/jansi'...
$ git fetch origin be3cca233fef1278ddfe5daa59e4c1a181c3c941:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jansi
 * [new ref]         be3cca233fef1278ddfe5daa59e4c1a181c3c941 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at be3cca2 Update to upstream version 2.4.1