ASCII String Control Code Bug

I was trying to use a color change string control code to have a differently colored number as the very first character in a string. However this is currently impossible.

My color change code:
\1\8\6

Now if I want a "5" in that color as the first character in a string I would need to do this:
\1\8\65
That makes the whole string black though.

This won't work either, because then I have a space that I don't want:
\1\8\6 5

My solution would have been to use an ASCII string control code. This here makes a 5:
\52

So I tried this:
\1\8\6\52

If I do that it looks just how I wanted it in the preview section of the message. However, when I press OK, the ASCII string control code for the "5" gets automatically replaced by an actual "5", putting me back to the original problem.

Yeah, it's annoying. Using \52 should actually work; it only replaces it with a 5 if you edit it again.
There's another way to do it. Each argument in a control code can be a maximum of five digits, so it will ignore the 5 if you enter the code as as \1\8\00006. Again, however, it'll change it to \1\8\65 if you edit the string again.

I might be able to make it smarter about that. Not too sure, but I'll try, at least.

Fixed. It will now encode numerals after control codes.