The problem is that latex.snippets is interpreted as *tex.snippets, that is a file that handles ft=tex. If this file extends ft=tex, it effectively extends itself recursively. UltiSnips should catch this with a useful error message and not recurse.
The problem is that latex.snippets is interpreted as *tex.snippets, that is a file that handles ft=tex. If this file extends ft=tex, it effectively extends itself recursively. UltiSnips should catch this with a useful error message and not recurse.