[TeX][SVG] \set overlapping text with brace

[pkra]

On mathjax.org#demo (using SVG output), e.g., $$ \set{n | n \in \mathbb{N} }$$ renders

More generally, $\set{ x }$ is ok but $ \set{xx}$ is not.

[dpvc]

This turns out to be due to an inferred mrow being included in the output of \set where it shouldn't be. (This is similar to the issue in #2524, exactly 100 issues/PRs ago.)