Bug overview description.
Dtext sub/superscript doesn't work with uppercase letters

What part(s) of the site page(s) are affected?
Everything using dtext

What is the expected behavior?
Should not be case-sensitive

What actual behavior is given instead?
sub-and superscript don't work in uppercase.

Time of incident (if applicable).
N/a

Can you reproduce the bug every time?
Yup

What steps did you take to replicate this bug?
[Sub]subscript [/Sub] appears as
_subscript

appears as
^superscript

Errors or other messages returned (if any).
N/a