$ git clone -n https://src.fedoraproject.org/rpms/qt6-qtwayland.git /var/lib/mock/f39-build-1814258-41837/root/chroot_tmpdir/scmroot/qt6-qtwayland
Cloning into '/var/lib/mock/f39-build-1814258-41837/root/chroot_tmpdir/scmroot/qt6-qtwayland'...
$ git fetch origin 62e6d32a0f3eb7ca7778a01084cc39ef14b0620a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6-qtwayland
 * [new ref]         62e6d32a0f3eb7ca7778a01084cc39ef14b0620a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 62e6d32 6.6.0