$ git clone -n https://src.fedoraproject.org/rpms/qt5-qtcharts.git /var/lib/mock/f40-build-772930-126730/root/chroot_tmpdir/scmroot/qt5-qtcharts
Cloning into '/var/lib/mock/f40-build-772930-126730/root/chroot_tmpdir/scmroot/qt5-qtcharts'...
$ git fetch origin e3e4f4325114a5d7311e9668c2068489b8fbd2cc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5-qtcharts
 * [new ref]         e3e4f4325114a5d7311e9668c2068489b8fbd2cc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e3e4f43 5.15.12