$ git clone -n https://src.fedoraproject.org/rpms/stellarium.git /var/lib/mock/f40-build-1512097-23908/root/chroot_tmpdir/scmroot/stellarium
Cloning into '/var/lib/mock/f40-build-1512097-23908/root/chroot_tmpdir/scmroot/stellarium'...
$ git fetch origin 19f1c1b4edb23178a9d20afe3b6b9edc02cfa599:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/stellarium
 * [new ref]         19f1c1b4edb23178a9d20afe3b6b9edc02cfa599 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 19f1c1b 24.2