ComboBox: strict mode compliance (UNSAFE_)

[ecraig12345]

ComboBox updates the following state in componentWillReceiveProps:

• selectedIndices is reset if props.selectedKeys changes. This can also be set elsewhere in the class (incorrect semi-controlled pattern).
• currentOptions is reset if props.options changes. This can also be set elsewhere in the class if the user types new options.
• suggestedDisplayValue is cleared if props.selectedKey is newly null, but can be reset elsewhere in the class

It's likely that this would be easier to fix in-place rather than doing a function component conversion due to the overall complexity of the component.

[msft-github-bot]

🎉This issue was addressed in #14719, which has now been successfully released as @uifabric/[email protected].:tada:

Handy links:

• Release Notes
• Official NPM Release

[msft-github-bot]

🎉This issue was addressed in #14719, which has now been successfully released as @fluentui/[email protected].:tada:

Handy links:

• Release Notes
• Official NPM Release