Description

This PR fixes two problem inside the update workflow:

• A new request is included to retrieve the permissions (when undefined) to update modified linked resources
• Review the update of permissions for existing linked resources not modified in the workflow. The updateOtherLinkedResourcesPermissions observable has been separated to highlight that's a different workflow not related to modified linked resources.

Please check if the PR fulfills these requirements

• The commit message follows our guidelines: https://github.com/geosolutions-it/MapStore2/blob/master/CONTRIBUTING.md
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

What kind of change does this PR introduce? (check one with "x", remove the others)

• Bugfix

Issue

What is the current behavior?

#11508

What is the new behavior?

This fix covers cases when permissions could be undefined in the update resource workflow

Breaking change

Does this PR introduce a breaking change? (check one with "x", remove the other)

• No

Other useful information

While testing we should check also #11242