Create version - entering a name before unchecking 'copy' breaks the list

1. Go to a project with at least one version
2. Select 'Copy to new version' from the drop down
3. On the New Version page, either:

• enter a name, or

• uncheck, then check the "Copy from version" checkbox

4. Uncheck the "Copy from version" checkbox

Actual:
The checkbox is off, but the versions list is still displayed

Expected:
The project types list should be displayed

Additional:
Pressing Create creates a version with the (currently hidden) default type