Fix empty parse control value

[dersnek]

Some text combinations lead to 0 matches on this line, which causes the parser to fail with an error. The parser works perfectly if we just skip these matches and do not try to assign anything.

[dj2]

Is it possible to add a spec test for this case so we can make sure it doesn't creap back into the code?

[dersnek]

Is it possible to add a spec test for this case so we can make sure it doesn't creap back into the code?

Sure, I'll to that! Give me couple days

[dersnek]

Is it possible to add a spec test for this case so we can make sure it doesn't creap back into the code?

Added, please take a look