Fix #12788 style missing geometry in imported vector files

[stefanocudini]

Description

Fix #12788

• fix issue render feature problem
• added some additional tests to check importing shapefile, previous not covered

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

#12788

What is the new behavior?
does not filter some features of new imported vector layers, does not create features with duplicate ids

Breaking change

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

• Yes, and I documented them in migration notes
• No

[allyoucanmap]

@ElenaGallo please test this fix on dev, thanks

[offtherailz]

Successfully created backport PR for 2026.02.xx:

• [Backport 2026.02.xx] Fix #12788 style missing geometry in imported vector files #12814

[offtherailz]

Backport failed for 2026.02.xx, because it was unable to cherry-pick the commit(s).

Please cherry-pick the changes locally and resolve any conflicts.

git fetch origin 2026.02.xx
git worktree add -d .worktree/backport-12797-to-2026.02.xx origin/2026.02.xx
cd .worktree/backport-12797-to-2026.02.xx
git switch --create backport-12797-to-2026.02.xx
git cherry-pick -x ff4cb0e459bdd1545c9f3d0fefbcc1b18b346d33

[offtherailz]

Request failed due to following response errors:

• Pull request Pull request is in unstable status