$ git clone -n https://src.fedoraproject.org/rpms/qt6-qtwebengine.git /var/lib/mock/f41-build-733115-13198/root/chroot_tmpdir/scmroot/qt6-qtwebengine
Cloning into '/var/lib/mock/f41-build-733115-13198/root/chroot_tmpdir/scmroot/qt6-qtwebengine'...
$ git fetch origin b262abe29a69e188c13cbe6728c13b042fc9f8fe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6-qtwebengine
 * [new ref]         b262abe29a69e188c13cbe6728c13b042fc9f8fe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b262abe Eliminate use of obsolete %patchN syntax (#2283636)