fix(common): handle isMulti and null change

[rvsia]

Fixes #1118

Schema (try in PF4 mapper)

                schema={{
                    fields: [
                      {
                        component: 'select',
                        label: 'Select',
                        name: 'select',
                        isSearchable: true,
                        options: [{label: '111', value: 1 }],
                        noValueUpdates: true,
                        simpleValue: true,
                        isClearable: true,
                        isMulti: true
                      }
                    ]
                  }}

[DataDrivenFormsBot]

A new version (fix) will be released: v3.12.1 [DataDrivenFormsBot]

[codecov]

Codecov Report

Merging #1119 (602e87f) into master (f3872c0) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #1119   +/-   ##
=======================================
  Coverage   94.90%   94.90%           
=======================================
  Files         205      205           
  Lines        3512     3512           
  Branches     1214     1214           
=======================================
  Hits         3333     3333           
  Misses        179      179           

Impacted Files	Coverage Δ
packages/common/src/select/select.js	97.50% <100.00%> (ø)

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[Hyperkid123]

🎉 This PR is included in version 3.12.1 🎉

The release is available on

• react-form-renderer (@latest dist-tag)

• ant-component-mapper (@latest dist-tag)

• blueprint-component-mapper (@latest dist-tag)

• carbon-component-mapper (@latest dist-tag)

• mui-component-mapper (@latest dist-tag)

• pf4-component-mapper (@latest dist-tag)

• suir-component-mapper (@latest dist-tag)

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