fix: set item uom as stock_uom if it isn't set (backport frappe#27623) (

frappe#27781)

* fix: set item uom as stock_uom if it isn't set (frappe#27623)

* fix: set item uom as stock_uom if it isn't set

(cherry picked from commit 5c37220)

# Conflicts:
#	erpnext/stock/doctype/stock_entry/stock_entry.js

* fix: resolve conflicts

[skip ci]

Co-authored-by: Alan <2.alan.tom@gmail.com>
Co-authored-by: Ankush Menat <ankush@iwebnotes.com>

erpnext/stock/doctype/stock_entry/stock_entry.js

@@ -282,6 +282,12 @@ frappe.ui.form.on('Stock Entry', {
 		frm.trigger("setup_quality_inspection");
 	},
 
+	before_save: function(frm) {
+		frm.doc.items.forEach((item) => {
+			item.uom = item.uom || item.stock_uom;
+		})
+	},
+
 	purpose: function(frm) {
 		frm.trigger('validate_purpose_consumption');
 		frm.fields_dict.items.grid.refresh();