$ git clone -n https://src.fedoraproject.org/rpms/qt6-qtwebengine.git /var/lib/mock/f41-build-845431-162686/root/chroot_tmpdir/scmroot/qt6-qtwebengine
Cloning into '/var/lib/mock/f41-build-845431-162686/root/chroot_tmpdir/scmroot/qt6-qtwebengine'...
$ git fetch origin 864539f2140a11fda9bf3ef878a2e627f04f0b2d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6-qtwebengine
 * [new ref]         864539f2140a11fda9bf3ef878a2e627f04f0b2d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 864539f Fix building with system ffmpeg