[okular] [Bug 449187] New: Highligthing some latex equations also takes highlights half the line below

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=449187

            Bug ID: 449187
           Summary: Highligthing some latex equations also takes
                    highlights half the line below
           Product: okular
           Version: 21.12.0
          Platform: Microsoft Windows
                OS: Microsoft Windows
            Status: REPORTED
          Severity: minor
          Priority: NOR
         Component: PDF backend
          Assignee: okular-devel at kde.org
          Reporter: ultrapoci at gmail.com
  Target Milestone: ---

Created attachment 145946
  --> https://bugs.kde.org/attachment.cgi?id=145946&action=edit
Wrong highlighting

SUMMARY
When using PDFs with Latex equations, highlighting text can sometimes result in
half the line below the highlighted text to also be highlighted. This seems to
happen only for certain characters and not for all equations. See for example
this pdf: https://arxiv.org/pdf/hep-lat/0312022.pdf

OBSERVED RESULT
See attachment. Note that avoiding the "+" symbol and the spaces around it
doesn't highlight the line below, and produce the correct behavior. However,
the "+" symbol is not the only symbol to produce the bug.

EXPECTED RESULT
The line with the words "transition because" in the attachment should no be
half highlighted, and only with "(3+1)d E(6)" should be highlighted.

SOFTWARE/OS VERSIONS
Windows 10

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