Math blocks can't be directly preceded or followed by alphanumeric character

[nschloe]

MWE:

a$x$ -$x$ 1$x$

Screenshot:

$a$1

$a$-

$a$x

This also concerns the \(...\) and \[...\] syntax.

[jmlt2002]

I managed to reproduce this bug locally, could i be assigned to this issue?