$ git clone -n https://src.fedoraproject.org/rpms/kpublictransport.git /var/lib/mock/f40-build-1221567-22751/root/chroot_tmpdir/scmroot/kpublictransport
Cloning into '/var/lib/mock/f40-build-1221567-22751/root/chroot_tmpdir/scmroot/kpublictransport'...
$ git fetch origin 9721386a4e216efb8ac295a20b122a4884108a7e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kpublictransport
 * [new ref]         9721386a4e216efb8ac295a20b122a4884108a7e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9721386 Merge branch 'rawhide' into f40