$ git clone -n https://src.fedoraproject.org/rpms/qt6-qtgraphs.git /var/lib/mock/f40-build-1524244-23919/root/chroot_tmpdir/scmroot/qt6-qtgraphs
Cloning into '/var/lib/mock/f40-build-1524244-23919/root/chroot_tmpdir/scmroot/qt6-qtgraphs'...
$ git fetch origin 7cf22ce79e7aefdaa25998c8a9f981519a152d80:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6-qtgraphs
 * [new ref]         7cf22ce79e7aefdaa25998c8a9f981519a152d80 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7cf22ce 6.7.2