Strange spacing in the presence of U+1037 MYANMAR SIGN DOT BELOW

[dscorbett]

Font

NotoSansMyanmar-Regular.otf
NotoSerifMyanmar-Regular.ttf

Where the font came from, and when

Site: https://github.com/googlefonts/noto-fonts/blob/115d38430d957d38307457c036302b7bdbe0bbc4/phaseIII_only/unhinted/otf/NotoSansMyanmar/NotoSansMyanmar-Regular.otf
Site: https://github.com/googlefonts/noto-fonts/blob/115d38430d957d38307457c036302b7bdbe0bbc4/unhinted/NotoSerifMyanmar/NotoSerifMyanmar-Regular.ttf
Date: 2020-04-14

Font version

Version 2.001

Issue

After a below-base mark followed by a below-base dot, a post-base component with a dot below is shifted to the right. The dot below the post-base component is not shifted to the right.

Character data

ဂဂုၩ့
U+1002 MYANMAR LETTER GA
U+102F MYANMAR VOWEL SIGN U
U+1037 MYANMAR SIGN DOT BELOW
U+1069 MYANMAR SIGN WESTERN PWO KAREN TONE-1
U+1037 MYANMAR SIGN DOT BELOW
U+1002 MYANMAR LETTER GA
U+102F MYANMAR VOWEL SIGN U
U+1069 MYANMAR SIGN WESTERN PWO KAREN TONE-1
U+1037 MYANMAR SIGN DOT BELOW

Screenshot

[ohbendy]

Since these combinations occur in Western Pwo Karen, the dots on the consonants should sit to the left of the -u vowel. My recommendation would be to move consonants' dots below to the left when followed by a Western Pwo Karen tonemark, whether or not the tonemark itself has a dot below, and whether or not a text's language is set as Western Pwo Karen.