Fix full BA pose constness checking. Thx @bduisit.
Fix full BA pose constness checking. Thx @bduisit.

poparteu/openMVG,poparteu/openMVG,mojovski/openMVG,openMVG/openMVG,poparteu/openMVG,openMVG/openMVG,danylaksono/openMVG,openMVG/openMVG,mojovski/openMVG,openMVG/openMVG,openMVG/openMVG,poparteu/openMVG,caymard/openMVG,mojovski/openMVG,danylaksono/openMVG,caymard/openMVG,caymard/openMVG,danylaksono/openMVG