Fix ColorPicker committing extra action to history #31

Job	Run time
📊 Static checks / Code style, file formatting, and docs	3m 8s
🍏 iOS / Template (target=template_release)	28m 50s
🍎 macOS / Editor (target=editor, tests=yes)	21m 18s
🍎 macOS / Template (target=template_release)	27m 31s
🤖 Android / Template (target=template_release)	58m 9s
🌐 Web / Template (target=template_release)	24m 50s
🐧 Linux / Editor w/ Mono (target=editor)	9m 19s
🏁 Windows / Editor (target=editor, tests=yes)	1h 27m 45s
🐧 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)	25m 52s
🏁 Windows / Template (target=template_release)	56m 54s
🐧 Linux / Editor with clang sanitizers (target=editor, tests=yes, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)	40m 6s
🐧 Linux / Editor with ThreadSanitizer (target=editor, tests=yes, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)	36m 0s
🐧 Linux / Template w/ Mono (target=template_release)	34m 15s
🐧 Linux / Minimal template (target=template_release, everything disabled)	4m 4s
🪲 Godot CPP / Build and test Godot CPP	9m 51s
	7h 47m 52s

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