Updated on 2026-08-14

features/send/impl/src/main/java/com/tangem/features/send/subcomponents/destination/model/transformers/SendDestinationAddressTransformer.kt

@@ -12,7 +12,16 @@ internal class SendDestinationAddressTransformer(
         val state = prevState as? DestinationUM.Content ?: return prevState
 
         return state.copy(
-            addressTextField = state.addressTextField.copy(value = address, isValuePasted = isPasted),
+            addressTextField = state.addressTextField.copy(
+                value = address,
+                isValuePasted = isPasted,
+                // Editing the recipient invalidates any previously resolved/recognized data. It is
+                // recomputed by the following validation; keeping it would let a stale canonical
+                // address (blockchainAddress) leak into the transaction for the new, not-yet-validated value.
+                blockchainAddress = null,
+                contactName = null,
+                contactIcon = null,
+            ),
         )
     }
 }

features/send/impl/src/main/java/com/tangem/features/send/subcomponents/destination/model/transformers/SendDestinationValidationStartedTransformer.kt

@@ -7,6 +7,9 @@ internal object SendDestinationValidationStartedTransformer : Transformer<Destin
     override fun transform(prevState: DestinationUM): DestinationUM {
         val state = prevState as? DestinationUM.Content ?: return prevState
 
-        return state.copy(isValidating = true)
+        // Disable the primary button while validation is pending so it cannot be pressed with a
+        // stale enablement carried over from the previously validated value. It is re-enabled by
+        // SendDestinationValidationResultTransformer only when the new value is valid.
+        return state.copy(isValidating = true, isPrimaryButtonEnabled = false)
     }
 }