Changing form submission between object types causes too many re-renders

[saulipurhonen]

Describe the bug

If user moves between different object types form submission, you can see that the load times for forms are taking longer. This affects checking form status and can give false positives on isDirty. Might also be related to "clear form" action which doesn't seem to work right.

To Reproduce

Steps to reproduce the behaviour:

1. Go to WizardFillObjectDetailsForm component
2. In FormContent method log formschema
3. Move between forms on different object types
4. Console logs form schema multiple times

Expected behavior

Form should be rendered only once when object type changes.

[saulipurhonen]

Seems to be related to form resolver.

[saulipurhonen]

It seems that if user navigates to xml upload between different object type form, resolver is fired only once. This might be fixed with nulling form data between object type change.

[saulipurhonen]

Fixed with destroying form component between changing object types. Form component is given a key (a random number at this point, should be more convenient). Component is destroyed when the key changes and therefore doesn't do unnecessary validations. This is going to be fixed when bugfix/prevent-draft-version-alert-popping-incorrectly is merged.

This improves performance by lot. Fixed form reset also.