fix #926

src/components/select/select-head.vue

@@ -34,7 +34,7 @@
             spellcheck="false"
             @keydown="resetInputState"
             @keydown.delete="handleInputDelete"
-            @keydown.enter="handleInputEnter"
+            @keydown.enter.prevent.stop="handleInputEnter"
             @focus="onInputFocus"
             @blur="onInputBlur"
 

src/components/select/select.vue

@@ -800,14 +800,10 @@
                         label: query,
                         tag: undefined
                     };
-                    if (this.multiple) {
-                        this.onOptionClick(option);
-                    } else {
-                        // 单选时如果不在 nextTick 里执行，无法赋值
+                    // 单选（和多选，#926）时如果不在 nextTick 里执行，无法赋值
                     this.$nextTick(() => this.onOptionClick(option));
                 }
             }
-            }
         },
         watch: {
             value(value){