vmtx.AdvancedHeight of rotated mark glyphs

[kokiabe]

Rotated mark glyphs for vertical typesetting are set to 'width=0, verticalWidth=0' in the glyphs file. But the font I built is set to 'hmtx.AdvancedWidth=0, vmtx.AdvancedHeight=1,000'.
https://github.com/fontworks-fonts/Train/tree/fix_outline
I have glyphsLib v5.3.1 installed, but it seems that height of glyphs whose height is set to 0 in the glyphs file don't reflect in the font.
googlefonts/glyphsLib#557
To begin with, the base glyphs are set to 'hmtx.AdvancedWidth=0, vmtx.AdvancedHeight=1,000', so shouldn't the rotated glyphs be set to 'hmtx.AdvancedWidth=1,000, vmtx.AdvancedHeight=0'?
I'll continue to consider this matter.