Question: Difference between latex() command and "Copy as LaTeX" (bug?)

It seem like there is an (unwanted) difference between the latex() command and the newly introduced "Copy as LaTeX" in handling of \left and \right delimiters. A trivial example

\sin \! \left(\frac{b}{a}\right)

but if I instead use the new "Copy as LaTeX" command I get the result


These should of course be the same and I consider the first one to be the better conversion. It seems a very strange problem since it surely must be the same library routine that does the conversion in both cases? From a small set of examples I tried on it seem that the "Copy as .."  command never uses \left and \right which in several cases is absolutely necessary to get acceptable result.


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