[Lohit-devel-list] Issue with <virama, rra> in lohit malayalam 2.4.4

[Cibu Johny (സിബു)]

I downloaded the font from: https://fedoraproject.org/wiki/Lohit

The text: ക്റ K-RRA (\u0D15\u0D4D\u0D31)

Harfbuzz display:

[image: ഇൻലൈൻ ഇമേജ് 2]

Expected output (using NotoSansMalayalam):

[image: ഇൻലൈൻ ഇമേജ് 3]

Reasoning: Only RA should form the reordering consonant sign as displayed
by Lohit. When looked into the font, there seems to be explicit lookup to
form this consonant sign. That should be removed from the font. Relevant
TTX dump:

      <Lookup index="16">
        <LookupType value="4"/>
        <LookupFlag value="0"/>
        <!-- SubTableCount=1 -->
        <LigatureSubst index="0" Format="1">
          ...
          <LigatureSet glyph="U0D30">
            <Ligature components="U0D4D" glyph="glyph226"/>
          </LigatureSet>
          *<LigatureSet glyph="U0D31">*
*            <Ligature components="U0D4D" glyph="glyph138"/>*


I am reporting this thru mail because,  https://bugzilla.redhat.com/ is
down.
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