Fix to issue #99 without breaking any other tests.

model/model.js

@@ -18,6 +18,13 @@ steal('can/util','can/observe', function( can ) {
 		},function(){
 			d.rejectWith(this, arguments);
 		});
+
+		if(typeof def.abort === 'function') {
+			d.abort = function() {
+				return def.abort();
+			}
+		}
+
 		return d;
 	},
 		modelNum = 0,
@@ -579,7 +586,12 @@ steal('can/util','can/observe', function( can ) {
 					can.Construct._overwrite(self, base, name,function(){
 						// increment the numer of requests
 						this._reqs++;
-						return newMethod.apply(this, arguments).then(clean, clean);
+						var def = newMethod.apply(this, arguments);
+						var then = def.then(clean, clean);
+						then.abort = def.abort;
+
+						// attach abort to our then and return it
+						return then;
 					})
 				}
 			});
@@ -1046,7 +1058,10 @@ steal('can/util','can/observe', function( can ) {
 	}, function( method, name ) {
 		can.Model[name] = function( oldFind ) {
 			return function( params, success, error ) {
-				return pipe( oldFind.call( this, params ), this, method ).then( success, error );
+				var def = pipe( oldFind.call( this, params ), this, method );
+				def.then( success, error );
+				// return the original promise
+				return def;
 			};
 		};
 	});

model/model_test.js

@@ -114,6 +114,45 @@ asyncTest("findAll deferred reject", function() {
     }, 200);
 });
 
+if(window.jQuery) {
+
+asyncTest("findAll abort", function() {
+	expect(4);
+	var df;
+	can.Model("Person", {
+		findAll : function(params, success, error) {
+			df = can.Deferred();
+			df.then(function() {
+				ok(!params.abort,'not aborted');
+			},function() {
+				ok(params.abort,'aborted');
+			});
+			return df.promise({
+				abort: function() {
+					df.reject();
+				}
+			});
+		}
+	},{});
+	var resolvePromise = Person.findAll({ abort : false}).done(function() {
+		ok(true,'resolved');
+	});
+	var resolveDf = df;
+	var abortPromise = Person.findAll({ abort : true}).fail(function() {
+		ok(true,'failed');
+	});
+
+	setTimeout(function() {
+		resolveDf.resolve();
+        abortPromise.abort();
+
+        // continue the test
+        start();
+    }, 200);
+});
+
+}
+
 test("findOne deferred", function(){
 	if(window.jQuery){
 		can.Model("Person",{