Column Filters: ComboBox Field using the optionListDatasource is not returning results. 

Steps to reproduce

•  Add a comBoxField filter such as the following:

  name: events
  label: Events
  icon: icon-calendar
  subApps:
    browser:
      workbench:
        dropConstraintClass: info.magnolia.contacts.app.main.tree.ContactDropConstraint
        contentViews:
          - name: tree
            $type: treeView
            defaultOrder: false
            columns: !override
              - name: testId
                label: testId
                expandRatio: 2
                width: 200
                filterComponent:
                  $type: comboBoxField
                  emptySelectionAllowed: true
                  textInputAllowed: true
                  datasource:
                      $type: optionListDatasource
                      options:
                        - name: true
                          value: true
                          label: true
                        - name: false
                          value: false
                          label: false
  

• Note that you can see the options in the field filter
  
• If you select one of the options, it won't return anything
  **

Expected results
We should see the available results after the filter is applied

Actual results
Nothing is returned
 
Development notes

Are we missing to convert the column options to string when applying the filter?

https://git.magnolia-cms.com/projects/PLATFORM/repos/ui/browse/magnolia-ui-framework/src/main/java/info/magnolia/ui/datasource/optionlist/OptionToModelTypeConverter.java

https://git.magnolia-cms.com/projects/PLATFORM/repos/ui.pub/browse/magnolia-ui-framework/src/main/java/info/magnolia/ui/contentapp/browser/GridColumnConfigurer.java

see also development notes here: MGNLUI-7036