[FW][FIX]purchase_stock_ux: restrict cancel_remaining for blocked PO

[fw-bot-adhoc]

Forward-Port-Of: #236

[roboadhoc]

Pull request status dashboard.

[fw-bot-adhoc]

@mav-adhoc @jcadhoc cherrypicking of pull request #236 failed.

stdout:

Auto-merging purchase_stock_ux/models/purchase_order_line.py
CONFLICT (content): Merge conflict in purchase_stock_ux/models/purchase_order_line.py

stderr:

18:44:01.182605 git.c:444               trace: built-in: git cherry-pick 325e3e43b89fc4a2161cc01bfa7eb89c8f2652c9
error: could not apply 325e3e4... [FIX]purchase_stock_ux: restrict cancel_remaining for blocked PO
hint: after resolving the conflicts, mark the corrected paths
hint: with 'git add <paths>' or 'git rm <paths>'
hint: and commit the result with 'git commit'
----------
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.

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

[jcadhoc]

@roboadhoc r+