Stop narrowing deltas when raw

If the delta or the base item is raw, the "narrow" method does not
work adequately (because of pitfalls related to comparison of raw
values). Perhaps the simplest and most effective solution is to
disable narrowing the delta if either the delta or the base item
itself has some raw parts.

This resolves MID-7918 (the part related to ignoring modifications
of "const" based configuration properties).

infra/prism-impl/src/main/java/com/evolveum/midpoint/prism/impl/delta/ItemDeltaImpl.java

@@ -879,6 +879,9 @@ public ItemDelta<V, D> narrow(@NotNull PrismObject<? extends Objectable> object,
             return narrowWhenNoItem(object, assumeMissingItems);
         } else if (currentItem.isIncomplete() && currentItem.hasNoValues() && assumeMissingItems) {
             return this;
+        } else if (currentItem.hasRaw() || hasAnyRawValue()) {
+            // Raw comparisons are imprecise. To avoid losing any modifications, we keep the delta untouched in this case.
+            return this;
         } else {
             if (isReplace()) {
                 return narrowReplaceDelta(currentItem, plusComparator);
@@ -1854,6 +1857,24 @@ private Boolean isRawSet(Collection<V> set) {
         return true;
     }
 
+    public boolean hasAnyRawValue() {
+        return hasAnyRawValue(valuesToAdd)
+                || hasAnyRawValue(valuesToReplace)
+                || hasAnyRawValue(valuesToDelete);
+    }
+
+    private boolean hasAnyRawValue(Collection<V> set) {
+        if (set == null) {
+            return false;
+        }
+        for (V val : set) {
+            if (val.isRaw()) {
+                return true;
+            }
+        }
+        return false;
+    }
+
     @Override
     public void revive(PrismContext prismContext) throws SchemaException {
         reviveSet(valuesToAdd, prismContext);