Problem description: In case if user opens Monitoring => Maps => Edit map. Clicks on Shape element "Add" hyperlink, configuration form is displayed.
Then if the user resizes the text area element in the "Text" field, closes the form (doesn't matter if the form is saved or not) and then adds another shape and opens its configuration form, the previously made "Text" field resizing is present in the configuration of this other shape (see gif below).

Steps to reproduce:

1. Open Monitoring => Maps.
2. Open any existing map in edit mode
3. Add new "Shape" element
4. In Shape configuration form change "Shape" to Eclipse, save it by pressing on "Apply" button
5. Add some text to "Text" field
6. Close configuration form without saving it
7. Add another "Shape" element => Rectangle
8. Add some text to "Text" field
9. Change "Text" field sizing
10. Close configuration form without saving it
11. Open "Eclipse" configuration form

Result: The sizing of "Eclipse" Text field changed.
Expected: The "Text" field form stay intact. The sizing isn't changed.