Unicode names for anything still show unicode characters after name change

[supercoolspy]

Hi, I am currently mapping a jar and found that whenever I rename a Unicode name, some of the Unicode characters still stay there.

Example:
this.launcherSetup = md\u00cb\ulaunchGuiFrame;
launchGuiFrame is the name however the unicode characters still persist after the name is changed
Also this is not related to minecraft