$ git clone -n https://src.fedoraproject.org/rpms/qalculate-qt.git /var/lib/mock/f40-build-797205-141191/root/chroot_tmpdir/scmroot/qalculate-qt
Cloning into '/var/lib/mock/f40-build-797205-141191/root/chroot_tmpdir/scmroot/qalculate-qt'...
$ git fetch origin d04eedff63be0f70e7bc3ab35bcc3f1edfc2a640:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qalculate-qt
 * [new ref]         d04eedff63be0f70e7bc3ab35bcc3f1edfc2a640 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d04eedf Rebuild (qt6)