How to replicate the issue:
1 - Go to https://casesandberg.github.io/react-color/
2 - On the Chrome Picker, click on the arrow to see the RGBA inputs

3 - Change the A input to 0

4- Now change the value on the R input to something else
5 - The A input it's now back to 1 - When the 0 value we put previously on the A input should have been maintained.
