[Musicxml export] - Composite articulations not exported
S3 - Major
The attached example lists out all composite articulations found in the articulations palette. Many of them are exported as a single articulation such as staccato, and most of them can't be exported, e.g., the ones at bar 2. I included the single soft-accent because it doesn't export at all. The xml file shows correct output, and the order of some items placed in the articulation tag should be followed. Usually, staccato should be the first, and tenuto the last, intervened by lots of accents.
PS: Usually the solution will be using separated articulations, and this works in Musescore 3. But if opening a Musescore 2 file with multiple articulations on a single note in Musescore 3, Musescore 3 will automatically convert such articulations into composite ones, which can't be exported into musicxml at all. This is the reason why I suddenly realized the importance of solving this issue.
relates to #270643: [EPIC] MusicXML import/export issues
I have closed the pull request: it turns out a similar fix has already been developed for 3.x version, just not yet ported to MuseScore 4.