$ git clone -n https://src.fedoraproject.org/rpms/minicomputer.git /var/lib/mock/f41-build-1544691-23938/root/chroot_tmpdir/scmroot/minicomputer
Cloning into '/var/lib/mock/f41-build-1544691-23938/root/chroot_tmpdir/scmroot/minicomputer'...
$ git fetch origin 4b425b90e06ac126f4e084babf5eb07f1bb08d33:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/minicomputer
 * [new ref]         4b425b90e06ac126f4e084babf5eb07f1bb08d33 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4b425b9 Eliminate use of obsolete %patchN syntax (#2283636)