Trigger updates on name and stereotype change

[amolenaar]

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Documentation content changes

What is the current behavior?

Issue Number: #374

What is the new behavior?

Name and stereotype do update (may require #377 to work properly, since empty text strings do no cause an update).

Does this PR introduce a breaking change?

• Yes
• No

[sourcery-ai]

Sourcery Code Quality Report (beta)

❌  Merging this PR will decrease code quality in the affected files by 0.03 out of 10.

Quality metrics	Before	After	Change
Complexity	3.80	3.80	0.00
Method Length	107.88	109.88	2.00 🔴
Quality	7.49	7.46	-0.03 🔴

Other metrics	Before	After	Change
Lines	141	144	3

Changed files	Quality Before	Quality After	Quality Change
gaphor/UML/actions/partition.py	7.49	7.46	-0.03 🔴

Here are some functions in these files that still need a tune-up:

File	Function	Complexity	Length	Overall	Recommendation
gaphor/UML/actions/partition.py	PartitionItem.pre_update	8	233.78	5.09	Split out functionality
gaphor/UML/actions/partition.py	PartitionItem.draw_partition	8	182.84	5.59	Split out functionality

Please see our documentation here for details on how these metrics are calculated.

We are actively working on this report - lots more documentation and extra metrics to come!

Let us know what you think of it via email or our Gitter!

[danyeaw]

You are on a roll, thanks for the bug fix 🎉