Fix error thrown

Author: michaelprichardson

firebase-database/src/androidMain/kotlin/dev/gitlive/firebase/database/database.kt

@@ -202,10 +202,10 @@ actual class DatabaseReference internal constructor(
                 committed: Boolean,
                 snapshot: com.google.firebase.database.DataSnapshot?
             ) {
-                if (error == null && snapshot != null) {
-                    deferred.complete(Result.success(DataSnapshot(snapshot)))
+                if(error != null) {
+                    throw error.toException()
                 } else {
-                    deferred.complete(Result.failure(Throwable(error?.message)))
+                    deferred.complete(Result.success(DataSnapshot(snapshot!!)))
                 }
             }
 

firebase-database/src/iosMain/kotlin/dev/gitlive/firebase/database/database.kt

@@ -165,10 +165,10 @@ actual class DatabaseReference internal constructor(
                 FIRTransactionResult.successWithValue(transactionUpdate(decode(strategy, firMutableData)) as FIRMutableData)
             },
             andCompletionBlock = { error, _, snapshot ->
-                if (error == null) {
-                    deferred.complete(Result.success(DataSnapshot(snapshot!!)))
+                if (error != null) {
+                    throw error
                 } else {
-                    deferred.complete(Result.failure(Throwable(error.localizedDescription)))
+                    deferred.complete(Result.success(DataSnapshot(snapshot!!)))
                 }
             },
             withLocalEvents = false

firebase-database/src/jsMain/kotlin/dev/gitlive/firebase/database/database.kt

@@ -135,9 +135,9 @@ actual class DatabaseReference internal constructor(override val js: firebase.da
             transactionUpdate,
             { error, _, snapshot ->
                 if (error != null) {
-                    deferred.complete(Result.success(DataSnapshot(snapshot!!)))
+                    throw error
                 } else {
-                    deferred.complete(Result.failure(Throwable(error?.message)))
+                    deferred.complete(Result.success(DataSnapshot(snapshot!!)))
                 }
             },
             applyLocally = false