[FW][FIX] mrp*,{purchase_,}stock: avoid route duplication

[fw-bot]

Few improvements for commit [1]:
- Before [1], _find_global_route, was not supposed to create any
route. Let's keep it like that
- _find_global_route is sometimes calls with an empty self
- The name of the copied route should not contain "(Copy)"
- When looking for a route, we should skip the active criteria

[1] 961ac2d

OPW-3889889
OPW-3888885

Forward-Port-Of: #165728

[robodoo]

Pull request status dashboard.

[fw-bot]

@adwid @Whenrow cherrypicking of pull request #165728 failed.

stdout:

Auto-merging addons/mrp/models/stock_warehouse.py
CONFLICT (content): Merge conflict in addons/mrp/models/stock_warehouse.py
Auto-merging addons/mrp_subcontracting/models/stock_warehouse.py
CONFLICT (content): Merge conflict in addons/mrp_subcontracting/models/stock_warehouse.py
Auto-merging addons/mrp_subcontracting_dropshipping/models/stock_warehouse.py
CONFLICT (content): Merge conflict in addons/mrp_subcontracting_dropshipping/models/stock_warehouse.py
Auto-merging addons/purchase_stock/models/stock.py
CONFLICT (content): Merge conflict in addons/purchase_stock/models/stock.py
Auto-merging addons/stock/models/stock_warehouse.py
CONFLICT (content): Merge conflict in addons/stock/models/stock_warehouse.py

stderr:

12:38:57.865660 git.c:463               trace: built-in: git cherry-pick a5ce4fac2b10bedb2f4171a9182740056e097f3b
error: could not apply a5ce4fac2b10... [FIX] mrp*,{purchase_,}stock: avoid route duplication
hint: After resolving the conflicts, mark them with
hint: "git add/rm <pathspec>", then run
hint: "git cherry-pick --continue".
hint: You can instead skip this commit with "git cherry-pick --skip".
hint: To abort and get back to the state before "git cherry-pick",
hint: run "git cherry-pick --abort".
----------
status:

Either perform the forward-port manually (and push to this branch, proceeding as usual) or close this PR (maybe?).

In the former case, you may want to edit this PR message as well.

⚠️ after resolving this conflict, you will need to merge it via @robodoo.

More info at https://github.com/odoo/odoo/wiki/Mergebot#forward-port

[adwid]

robodoo r+