$ git clone -n https://src.fedoraproject.org/rpms/qt5-qtxmlpatterns.git /var/lib/mock/f41-build-847195-163786/root/chroot_tmpdir/scmroot/qt5-qtxmlpatterns
Cloning into '/var/lib/mock/f41-build-847195-163786/root/chroot_tmpdir/scmroot/qt5-qtxmlpatterns'...
$ git fetch origin 2b0b41313cac442ceeab340cea48f45759258ab4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5-qtxmlpatterns
 * [new ref]         2b0b41313cac442ceeab340cea48f45759258ab4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2b0b413 5.15.15