Fix audio bus effects not deselecting after switching focus in the editor #17560

Job	Run time
📊 Static checks / Code style, file formatting, and docs	1m 0s
🍏 iOS / Template (target=template_release)	2m 36s
🤖 Android / Template (target=template_release)	3m 43s
🏁 Windows / Editor (target=editor, tests=yes)	7m 47s
🏁 Windows / Template (target=template_release)	7m 16s
🐧 Linux / Editor w/ Mono (target=editor)	2m 51s
🍎 macOS / Editor (target=editor, tests=yes)	19m 24s
🐧 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)	12m 50s
🌐 Web / Template (target=template_release)	1m 16s
🍎 macOS / Template (target=template_release)	3m 8s
🐧 Linux / Editor with clang sanitizers (target=editor, tests=yes, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)	5m 12s
🐧 Linux / Editor with ThreadSanitizer (target=editor, tests=yes, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)	5m 48s
🐧 Linux / Template w/ Mono (target=template_release)	55s
🐧 Linux / Minimal template (target=template_release, everything disabled)	2m 15s
🪲 Godot CPP / Build and test Godot CPP	6m 45s
	1h 22m 46s

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