Precondition: OPT-2004 is merged

Reproduce:

• goto the process definition selection
• select a process definition that has one version
• select another process definition that has two versions
• Use the keyboard to navigate to the version select dropdown
• Press enter to open the dropdown
• Use the down arrow key to navigate through the options

Expected:

• I can access all options using the down arrow key

Observed:

• Only the all version entry is accessible

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Hint:
The Dropdown component uses an instance variable to store refs to the Dropdown options (Github link). When the children change (componentDidUpdate lifecycle), the old refs are still kept in this array, making newly added options not accessible