$ git clone -n https://src.fedoraproject.org/rpms/qt6-qtwayland.git /var/lib/mock/f40-build-786430-134291/root/chroot_tmpdir/scmroot/qt6-qtwayland
Cloning into '/var/lib/mock/f40-build-786430-134291/root/chroot_tmpdir/scmroot/qt6-qtwayland'...
$ git fetch origin 153a727d95bf87a8d1c9db411612d6577bd71c13:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6-qtwayland
 * [new ref]         153a727d95bf87a8d1c9db411612d6577bd71c13 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 153a727 6.6.2