The sequence U+1004,U+103A,U+1039,U+104E (NGA + ASAT + VIRAMA + AFOREMENTIONED) is rendered with a dotted circle in HarfBuzz, but it is valid according to UTN #11: "One of the significant changes between Unicode 4 and Unicode 5.1 was the change in spelling of lagaun changed from U+104E to U+104E U+1004 U+103A U+1038. This is to facilitate an alternative spelling of lagaun of U+1004 U+103A U+1039 U+104E. This change results in a subtle change of behaviour for U+104E from being a complete punctuation symbol with corresponding predefined line breaking behaviour, to being just another character that needs algorithmic analysis both for segmentation and for sorting."
commit 096b71e8ef0c1443f3f86069d5416b887af6e9e7 Author: Behdad Esfahbod <behdad@behdad.org> Date: Mon Nov 25 18:03:34 2013 -0500 [myanmar] Mark U+104E MYANMAR SYMBOL AFOREMENTIONED as Consonant The spec and Uniscribe treat it as consonant in the grammar, but it's not in IndicSyllableCategory.txt, so fix up. Test sequence: U+1004,U+103A,U+1039,U+104E https://bugs.freedesktop.org/show_bug.cgi?id=71948
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