Created attachment 94120 [details]
ODT file with example of error
When a 'Header 1' textblock contains a superscript character (e.g.n powered 2, The '2' is superscript), the index/Table shows superscript character as a normal character.
Steps to reproduce:
Operating System: Ubuntu
Version: 188.8.131.52 release
This is part of bug 30732. To workaround it, use the special superscript and subscript characters of the fonts, e.g. ₀₁₂⁴⁵⁶ for example from font "DejaVu".
*** This bug has been marked as a duplicate of bug 30732 ***