Ensure that restarted request use the updated model when failed/canceled as it...

Ensure that restarted request use the updated model when failed/canceled as it can contains data to help the request to succeed. (#2293)

library/src/main/java/com/bumptech/glide/RequestBuilder.java

@@ -359,11 +359,15 @@ public class RequestBuilder<TranscodeType> implements Cloneable {
     Request request = buildRequest(target);
 
     Request previous = target.getRequest();
-    if (request.isEquivalentTo(previous)) {
+    // When request was failed or cancelled, be sure to use the updated model as it can contains
+    // unexposed data that could help the request to succeed on restart.
+    // See https://github.com/bumptech/glide/issues/2270
+    if (request.isEquivalentTo(previous)
+      && (Preconditions.checkNotNull(previous).isComplete()
+         || Preconditions.checkNotNull(previous).isRunning())) {
       request.recycle();
       // If the request is completed, beginning again will ensure the result is re-delivered,
-      // triggering RequestListeners and Targets. If the request is failed, beginning again will
-      // restart the request, giving it another chance to complete. If the request is already
+      // triggering RequestListeners and Targets. If the request is already
       // running, we can let it continue running without interruption.
       if (!Preconditions.checkNotNull(previous).isRunning()) {
         previous.begin();