$ git clone -n https://src.fedoraproject.org/rpms/qt6-qtwebengine.git /var/lib/mock/f40-build-2284762-55651/root/chroot_tmpdir/scmroot/qt6-qtwebengine
Cloning into '/var/lib/mock/f40-build-2284762-55651/root/chroot_tmpdir/scmroot/qt6-qtwebengine'...
$ git fetch origin 40941ebdcb6643b36e0fe14d4b9ab28bbc8889d5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6-qtwebengine
 * [new ref]         40941ebdcb6643b36e0fe14d4b9ab28bbc8889d5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 40941eb Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild