Fix/46642/groups values in pdf

[jdurand-teclib]

• I have performed a self-review of my code.
• I have added tests (when available) that prove my fix is effective or that my feature works.
• I have updated the CHANGELOG with a short functional description of the fix or new feature.
• This change requires a documentation update.

Description

• It fixes !46642
• Here is a brief description of what this PR does
  • Fix groups values display in PDF (groups_id & groups_id_tech) for every concerned assets/items. groups values were treated as single id where it is actually a list of ids.
  • Applied striptag to groups names
  • Added unit tests

Screenshots

Testing asset:

Before:

After:

[Mary-Clb]

I looks like the same problem as #63 (group fields loaded as arrays of IDs for assignable assets). Yours is more complete (more asset classes covered), so I'll close #63 in favor of this one.

[jdurand-teclib]

I gave the patch to the customers, I'm waiting for their feedback before merging