When U+11931 DIVES AKURU VOWEL SIGN I is applied to U+11925 DIVES AKURU LETTER YA or U+11926 DIVES AKURU LETTER YYA in this font, it swashes below the letter. This is different from its default, tall, post-base form that it has when applied to, for example, U+11920 DIVES AKURU LETTER PA or U+1191E DIVES AKURU LETTER DHA. L2/18-016R says that “In fatkoḷu, the sign is often elongated and may loop beneath the base,” but this font otherwise prefers glyphs characteristic of lōmāfānu instead. On this PDF of a scanned lōmāfānu, page 53, line 2, and on page 57, line 6, ⟨𑤥𑤱⟩ is written with a post-base glyph just like for any other base. Did lōmāfānu ever use below-base i too? I don’t know, but I think it is worth double-checking this font’s contextualization of i.
Character data
𑤥𑤱𑤦𑤱
U+11925 DIVES AKURU LETTER YA
U+11931 DIVES AKURU VOWEL SIGN I
U+11926 DIVES AKURU LETTER YYA
U+11931 DIVES AKURU VOWEL SIGN I
𑤠𑤱𑤞𑤱
U+11920 DIVES AKURU LETTER PA
U+11931 DIVES AKURU VOWEL SIGN I
U+1191E DIVES AKURU LETTER DHA
U+11931 DIVES AKURU VOWEL SIGN I
Thank you for pointing this out – it is definitely an error. This shape was dropped elsewhere in favour of the lōmāfānu shape, to avoid similarity with some implementations of medial RA.
Font
NotoSerifDivesAkuru-Regular.otf
Where the font came from, and when
Site: https://github.com/googlefonts/noto-fonts/blob/c8729a9e61b2a54a9d2b4c61a82d4d93213bd6e3/unhinted/otf/NotoSerifDivesAkuru/NotoSerifDivesAkuru-Regular.otf Date: 2022-04-21
Font version
Version 1.000
Issue
When U+11931 DIVES AKURU VOWEL SIGN I is applied to U+11925 DIVES AKURU LETTER YA or U+11926 DIVES AKURU LETTER YYA in this font, it swashes below the letter. This is different from its default, tall, post-base form that it has when applied to, for example, U+11920 DIVES AKURU LETTER PA or U+1191E DIVES AKURU LETTER DHA. L2/18-016R says that “In fatkoḷu, the sign is often elongated and may loop beneath the base,” but this font otherwise prefers glyphs characteristic of lōmāfānu instead. On this PDF of a scanned lōmāfānu, page 53, line 2, and on page 57, line 6, ⟨𑤥𑤱⟩ is written with a post-base glyph just like for any other base. Did lōmāfānu ever use below-base i too? I don’t know, but I think it is worth double-checking this font’s contextualization of i.
Character data
𑤥𑤱𑤦𑤱 U+11925 DIVES AKURU LETTER YA U+11931 DIVES AKURU VOWEL SIGN I U+11926 DIVES AKURU LETTER YYA U+11931 DIVES AKURU VOWEL SIGN I 𑤠𑤱𑤞𑤱 U+11920 DIVES AKURU LETTER PA U+11931 DIVES AKURU VOWEL SIGN I U+1191E DIVES AKURU LETTER DHA U+11931 DIVES AKURU VOWEL SIGN I
Screenshot