[UI] Number of Proxies changes from 'X' to '1' while creating a mysql db cluster

STRs:
1. Install Everest (I tested on it on two different FBs, it should be reproducible using main)
2. Select ‘Create Database’ → MySQL
3. Select resources for the cluster (any)
4. When selecting any one of the backups/Advanced Configuration/monitoring option, from Database summary select Basic Information
5. Jump back to backups/Advanced Configuration/monitoring option, and try creating the cluster

Actual Result:
Just by clicking on the ‘Basic Information’ option, the resource values reset (nodes are set to 3 and proxies are set to 1) and if the user does not click the resources page again or change values manually, it won’t allow the user to create a 3 node db cluster with 1 proxy. It gives the following error: invalid request min replicas number for Proxy is 2.

Expected Result:
1. It should not reset any value/option from the Create database configuration until the user changes something that has an impact on any one of the options, ex: namespace, as it might not have a storage location added to it.
2. The default configuration, upon changing, should be valid and not give any error.