fix(pos): cannot ignore pricing rule for one particular invoice

[nextchamp-saqib]

1. Create a POS Invoice using Form View
2. Click on Ignore Pricing Rule
3. Add an Item that has some Pricing Rule
4. Save the document

You should see pricing rule has been applied and Ignore Pricing Rule is unchecked which shouldn't be the case.

Expected Behaviour:
Ignore Pricing Rule check shouldn't be overwritten from POS Profile. It should be only fetched initially from POS Profile

[codecov]

Codecov Report

Merging #29222 (f1976c9) into develop (962dd5e) will increase coverage by 0.06%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop   #29222      +/-   ##
===========================================
+ Coverage    57.74%   57.81%   +0.06%     
===========================================
  Files         1110     1110              
  Lines        67991    67990       -1     
===========================================
+ Hits         39262    39309      +47     
+ Misses       28729    28681      -48     

Impacted Files	Coverage Δ
...rpnext/accounts/doctype/pos_invoice/pos_invoice.py	71.80% <ø> (-0.08%)	⬇️
...wise_balance_history/batch_wise_balance_history.py	68.96% <0.00%> (-22.42%)	⬇️
erpnext/portal/utils.py	28.98% <0.00%> (-1.45%)	⬇️
erpnext/support/doctype/issue/issue.py	64.56% <0.00%> (-0.98%)	⬇️
.../report/accounts_receivable/accounts_receivable.py	71.36% <0.00%> (-0.43%)	⬇️
erpnext/stock/get_item_details.py	79.93% <0.00%> (-0.16%)	⬇️
erpnext/stock/report/stock_ageing/stock_ageing.py	93.06% <0.00%> (ø)
erpnext/stock/stock_ledger.py	85.76% <0.00%> (+0.36%)	⬆️
erpnext/portal/product_configurator/utils.py	34.00% <0.00%> (+0.40%)	⬆️
erpnext/selling/doctype/quotation/quotation.py	49.72% <0.00%> (+0.54%)	⬆️
... and 14 more

[nextchamp-saqib]

@Mergifyio backport version-13-hotfix

[mergify]

backport version-13-hotfix

✅ Backports have been created

• #29232 fix(pos): cannot ignore pricing rule for one particular invoice (backport #29222) has been created for branch version-13-hotfix