My test case: echo -e 'a\u0308a' Correct rendering: äa (That's what I see with: Courier, Cousine, DejaVu Sans Mono, FreeMono)
Incorrect rendering: aä (That's what I see with: Andale Mono, Bitstream Vera Sans Mono, Courier 10 Pitch, Courier New, Hack Mono, Liberation Mono, Mitra Mono, Nimbus Mono L, Noto Mono, Oxygen Mono, Tlwg Mono, Tlwg Typo, Ubuntu Mono) -- PGP-Key 0xD40E0E7A
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