fix: Don't throw error for fieldtype Button conflicts

frappe/core/doctype/doctype/doctype.py

@@ -123,6 +123,9 @@ class DocType(Document):
 		}
 
 		for docfield in self.get("fields") or []:
+			if docfield.fieldtype == "Button":
+				continue
+
 			conflict_type = None
 			field = docfield.fieldname
 			field_label = docfield.label or docfield.fieldname