https://bugs.freedesktop.org/show_bug.cgi?id=65229

          Priority: medium
            Bug ID: 65229
          Assignee: [email protected]
           Summary: superscript element in formula shifts formula baseline
          Severity: minor
    Classification: Unclassified
                OS: Linux (All)
          Reporter: [email protected]
          Hardware: Other
            Status: NEW
           Version: 4.0.1.2 release
         Component: Formula Editor
           Product: LibreOffice

In formulas, if any superscript element is used, even an empty one (^{}) the
formula's baseline is shifted down, by small but quite visible amount. That
produces an unpleasant, sloppy look, especially if similar glyphs are used both
in formula and text, in the same line.

Proof: sample document with three formulas and part of the screenshot, with
another window titlebar (reddish block) serving as a ruler. The 1st formula has
"real" superscript  (^+{}) and is shifted down, the 2nd has no superscript --
and is positioned correctly w/r to the baseline, the 3rd has empty superscript
(^{}) and is shifted down.

"Line spacing" setting (default of "5%") in formula editor has no effect on
this, this is obviously an added "extra", produced somewhere in rendering code.

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