[filter_box] Fix ; separated filter_box default values #8949
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
CATEGORY
Choose one
SUMMARY
Superset allow user set multi values for filter field default value, separated by
![Screen Shot 2020-01-11 at 3 20 27 PM](https://user-images.githubusercontent.com/27990562/72211807-30f75900-3486-11ea-813a-c995910096a4.png)
;
:BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF
Before:
![Screen Shot 2020-01-11 at 3 21 08 PM](https://user-images.githubusercontent.com/27990562/72211814-3c4a8480-3486-11ea-867c-48453f1f6979.png)
After:
![Screen Shot 2020-01-11 at 3 20 35 PM](https://user-images.githubusercontent.com/27990562/72211812-3a80c100-3486-11ea-88f8-cb5d7c1df591.png)
TEST PLAN
new unit test is created.
ADDITIONAL INFORMATION
REVIEWERS
@michellethomas @etr2460