$ git clone -n https://src.fedoraproject.org/rpms/qt6-qtwebengine.git /var/lib/mock/f38-build-side-42-init-devel-1034593-29745/root/chroot_tmpdir/scmroot/qt6-qtwebengine
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1034593-29745/root/chroot_tmpdir/scmroot/qt6-qtwebengine'...
$ git fetch origin 39cf5491b2d31453bb261337342329318a4e31c1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6-qtwebengine
 * [new ref]         39cf5491b2d31453bb261337342329318a4e31c1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 39cf549 Merge branch 'rawhide' into f38