fix: unable to create partial invoice with auto fetch terms enabled

[ruthra-kumar]

With 'Automatically Fetch Payment Terms' enabled in Accounts Settings, partial invoice creation from Orders wasn't possible.

Fix: If Auto Fetch is enabled, Partial Invoice will pull the same Payment Terms from Sales/Purchase Order the validation on the terms will be skipped.

[codecov]

Codecov Report

Merging #35285 (63357ea) into develop (ecc80a8) will increase coverage by 0.07%.
The diff coverage is 0.00%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #35285      +/-   ##
===========================================
+ Coverage    63.75%   63.82%   +0.07%     
===========================================
  Files          813      813              
  Lines        60115    60211      +96     
===========================================
+ Hits         38326    38430     +104     
+ Misses       21789    21781       -8     

Impacted Files	Coverage Δ
erpnext/controllers/accounts_controller.py	85.28% <0.00%> (+0.04%)	⬆️

... and 20 files with indirect coverage changes

[deepeshgarg007]

@ruthra-kumar The validation should have been completely avoided in this case. In any case "
Automatically Fetch Payment Terms from Order" is checked in Accounts Setting and the order is linked to the invoice. Just simply fetch payment terms from Order, no validation. Maybe check once why the validation isn't getting ignored, should have been

[ruthra-kumar]

@ruthra-kumar The validation should have been completely avoided in this case. In any case "
Automatically Fetch Payment Terms from Order" is checked in Accounts Setting and the order is linked to the invoice. Just simply fetch payment terms from Order, no validation. Maybe check once why the validation isn't getting ignored, should have been

Addressed