Adjust to ObjFW changes

FossilOrigin-Name: 6b6fe6d802020bb3d3569e43c6a0ca08ca9f7792a5b3499953a7095abe824a19

src/MTXRequest.m

@@ -124,11 +124,17 @@
 -      (void)client: (OFHTTPClient *)client
   didPerformRequest: (OFHTTPRequest *)request
 	   response: (OFHTTPResponse *)response
+	  exception: (id)exception
 {
+	if (response != nil &&
+	    [exception isKindOfClass: [OFHTTPRequestFailedException class]])
+		exception = nil;
+
 	/* Reset to nil first, so that another one can be performed. */
 	mtx_request_block_t block = _block;
 	_block = nil;
 
+	if (exception == nil) {
 		@try {
 			OFMutableData *responseData = [OFMutableData data];
 			while (!response.atEndOfStream) {
@@ -149,30 +155,7 @@
 		} @catch (id e) {
 			block(nil, response.statusCode, e);
 		}
-
+	} else
-	[block release];
-	[self release];
-}
-
--	  (void)client: (OFHTTPClient *)client
-  didFailWithException: (id)exception
-	       request: (OFHTTPRequest *)request
-{
-	/*
-	 * Convert OFHTTPRequestFailedException into a response, so that we
-	 * still get the JSON for the failed request.
-	 */
-	if ([exception isKindOfClass: OFHTTPRequestFailedException.class]) {
-		[self	       client: client
-		    didPerformRequest: request
-			     response: [exception response]];
-		return;
-	}
-
-	/* Reset to nil first, so that another one can be performed. */
-	mtx_request_block_t block = _block;
-	_block = nil;
-
 		block(nil, 0, exception);
 
 	[block release];