[FIX] Keep computed editable field value when playing onchanges

onchange_helper/models/base.py

@@ -62,6 +62,10 @@ class Base(models.AbstractModel):
         return {
             f: v
             for f, v in all_values.items()
-            if not (self._fields[f].compute and not self._fields[f].inverse)
+            if not (
+                self._fields[f].compute
+                and not self._fields[f].inverse
+                and self._fields[f].readonly
+            )
             and (f in values or f in new_values or f in onchange_fields)
         }