u-image组件

fix: 修复u-image组件的src属性, 先传入空值再传入非空值时,无法触发loading效果的bug

uview-ui/components/u-image/u-image.vue

@@ -172,6 +172,7 @@ export default {
 					this.loading = false;
 				} else {
 					this.isError = false;
+					this.loading = true;
 				}
 			}
 		}