Fix onion skinning internals activating audio/method/animation tracks #13706

Job	Run time
📊 Static checks / Code style, file formatting, and docs	55s
🐧 Linux / Editor w/ Mono (target=editor)	5m 19s
🤖 Android / Template (target=template_release)	4m 20s
🐧 Linux / Editor with doubles and GCC sanitizers (target=editor, tests=yes, dev_build=yes, scu_build=yes, precision=double, use_asan=yes, use_ubsan=yes, linker=gold)	1h 3m 11s
🐧 Linux / Editor with clang sanitizers (target=editor, tests=yes, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)	10m 12s
🐧 Linux / Editor with ThreadSanitizer (target=editor, tests=yes, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)	9m 42s
🍎 macOS / Editor (target=editor, tests=yes)	28m 47s
🐧 Linux / Template w/ Mono (target=template_release)	2m 8s
🍎 macOS / Template (target=template_release)	16m 53s
🐧 Linux / Minimal template (target=template_release, everything disabled)	1m 45s
🍏 iOS / Template (target=template_release)	2m 51s
🌐 Web / Template (target=template_release)	1m 9s
🏁 Windows / Editor (target=editor, tests=yes)	9m 30s
🏁 Windows / Template (target=template_release)	8m 12s
🪲 Godot CPP / Build and test Godot CPP	9m 25s
	2h 54m 19s

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