Commit dropdown selection from keyboard without hitting 'Enter'

[Garrett]

Running into an issue when typing from keyboard to make a selection in some dropdown lists found in tool configurations. I've replicated it in the Join, Join Multiple, and Filter tools. (Sort tool worked as expected.)  Running version 10.6.

• Join tool configuration.
• From "Left" dropdown start typing to select a column.
• Click off the "Left" dropdown (into "Right" for example).
• Notice that your selection in "Left" is maintained.
• Now click on another tool or in the cavas.
• Click back to the Join tool. Notice that the "Left" selection has reverted to the original field and your typed selection is lost.
• Note: you can "commit" your selection by hitting "Enter" after typing, but I don't think this extra step should be required (as evidenced by the Sort tool).

This small mis-step can have SIGNIFICANT impact if a developer assumes their join field selection was set correctly, but in fact it changed without them noticing and is resulting in incorrect joins.

See attached video for quick walkthrough.