Canceling creating metadata

[heikki]

When you open the editor, a new metadata is saved immediately just by the act of opening the editor. This is unintuitive and very much non-standard (image that your Office program would immediately save a document as soon as you open the program).

It is however a bit more work to change this, than to do the following, which greatly alleviates the consequences: make the Cancel button in the editor delete the metadata, if it was just created.

Then, in Create metadata we could add a flag saying this is a newly created metadata; in the editor, we modify the code under the Cancel button according to this flag: if it is newly created, delete, else, keep current cancel functionality.

When a user does Save, Save and Close, or Check (which also saves first), or leaves the editor and comes back, the newly created flag is removed and the Cancel button functions as before.

[heikki]

committed in 2.6.x and trunk