$ git clone -n https://src.fedoraproject.org/rpms/qt6-qtquick3d.git /var/lib/mock/f40-build-2395402-60536/root/chroot_tmpdir/scmroot/qt6-qtquick3d
Cloning into '/var/lib/mock/f40-build-2395402-60536/root/chroot_tmpdir/scmroot/qt6-qtquick3d'...
$ git fetch origin f2ea1091ec82d5dc5c47a2390e0e89c958f2f1c1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6-qtquick3d
 * [new ref]         f2ea1091ec82d5dc5c47a2390e0e89c958f2f1c1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f2ea109 Fix build on RHEL 10 by not using "-march=x86-64-v3"