$ git clone -n https://src.fedoraproject.org/rpms/naev.git /var/lib/mock/f40-build-803433-144265/root/chroot_tmpdir/scmroot/naev
Cloning into '/var/lib/mock/f40-build-803433-144265/root/chroot_tmpdir/scmroot/naev'...
$ git fetch origin 2ca65860c093e2c6dd56a5074818d42b3bb18e35:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/naev
 * [new ref]         2ca65860c093e2c6dd56a5074818d42b3bb18e35 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2ca6586 Rebuild in side-tag for unibreak 6.1