$ git clone -n https://src.fedoraproject.org/rpms/qt6-qthttpserver.git /var/lib/mock/f40-build-740271-109608/root/chroot_tmpdir/scmroot/qt6-qthttpserver
Cloning into '/var/lib/mock/f40-build-740271-109608/root/chroot_tmpdir/scmroot/qt6-qthttpserver'...
$ git fetch origin aa307c8e305236bd7c1c7bf2f10ff5adc1737a2f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6-qthttpserver
 * [new ref]         aa307c8e305236bd7c1c7bf2f10ff5adc1737a2f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aa307c8 6.6.0