rusackas opened a new pull request #9351: fix: don't parseFloat when the 
*already numeric* value ends in a decimal
URL: https://github.com/apache/incubator-superset/pull/9351
 
 
   ### CATEGORY
   
   Choose one
   
   - [x] Bug Fix
   - [ ] Enhancement (new features, refinement)
   - [ ] Refactor
   - [ ] Add tests
   - [ ] Build / Development Environment
   - [ ] Documentation
   
   ### SUMMARY
   <!--- Describe the change below, including rationale and design decisions -->
   There was a funny issue I noticed with form controls, where if a 
`TextControl` has the `isFloat` prop set, you can't actually _type_ a decimal 
point. This is because when that prop is set, a `parseFloat` strips the decimal 
place off. This teensy PR just looks to see if the value ends in a decimal 
place. If so, it lets it slide through. If not, it runs the `parseFloat`. The 
value already went through a check to see if the value is numeric, so you can't 
type junk like `1.1.1` or something. There may still be edge cases around 
spaces or something, but at least this allows the user to type a decimal number.
   
   As a repro case, you can empty the Treemap's "Ratio" input and the try to 
type a decimal number.
   
   ### BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF
   <!--- Skip this if not applicable -->
   
   ### TEST PLAN
   <!--- What steps should be taken to verify the changes -->
   
   ### ADDITIONAL INFORMATION
   <!--- Check any relevant boxes with "x" -->
   <!--- HINT: Include "Fixes #nnn" if you are fixing an existing issue -->
   - [ ] Has associated issue:
   - [ ] Changes UI
   - [ ] Requires DB Migration.
   - [ ] Confirm DB Migration upgrade and downgrade tested.
   - [ ] Introduces new feature or API
   - [ ] Removes existing feature or API
   
   ### REVIEWERS
   @kristw @etr2460 

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