Fix opening type mapping matching

[FraserGreenroyd]

@BHoMBot check compliance @BHoMBot check core @BHoMBot check serialisation

[bhombot-ci[bot]]

@FraserGreenroyd to confirm, the following actions are now queued: - check `code-compliance` - check `documentation-compliance` - check `project-compliance` - check `branch-compliance` - check `dataset-compliance` - check `copyright-compliance` - check `core` - check `serialisation`