Issue with deep-copy/map-some-music a tuplet

Hello, I just noticed an inconsistent behavior with 2.25.0. The snippet below doesn't compile; I don't know if there is a hidden problem inside it, but it worked for all the versions prior to 2.25: %--- test =

Duplicate SVG attribute

Hello, I'm noting that the generated SVG of this...: { \once \override DynamicText.output-attributes.val = "x" \once \override DynamicText.output-attributes.val = "y" c'\mf } ... creates the following SVG tag, with a duplicate "val" attribute: Is this a bug? Also note that the