$ git clone -n https://src.fedoraproject.org/rpms/qt5-qtserialbus.git /var/lib/mock/f41-build-847182-163786/root/chroot_tmpdir/scmroot/qt5-qtserialbus
Cloning into '/var/lib/mock/f41-build-847182-163786/root/chroot_tmpdir/scmroot/qt5-qtserialbus'...
$ git fetch origin e3ada1785b1dbf7700ca5b9538ad8154fdcb4843:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5-qtserialbus
 * [new ref]         e3ada1785b1dbf7700ca5b9538ad8154fdcb4843 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e3ada17 5.15.15