fix(v-select): apply custom nudgeBottom

fixes #4713

Author: johnleider

src/components/VSelect/VSelect.js

@@ -178,7 +178,9 @@ export default {
         openOnClick: false,
         value: this.isMenuActive,
         offsetY: this.offsetY,
-        nudgeBottom: this.offsetY ? 1 : 0 // convert to int
+        nudgeBottom: this.nudgeBottom
+          ? this.nudgeBottom
+          : this.offsetY ? 1 : 0 // convert to int
       }
     },
     listData () {

test/unit/components/VSelect/VSelect3.spec.js

@@ -152,4 +152,23 @@ test('VSelect', ({ mount, compileToFunctions }) => {
 
     expect(change).toHaveBeenCalledTimes(1)
   })
+
+  // https://github.com/vuetifyjs/vuetify/issues/4713
+  it('should nudge select menu', () => {
+    const wrapper = mount(VSelect, {
+      propsData: {
+        nudgeTop: 5,
+        nudgeRight: 5,
+        nudgeBottom: 5,
+        nudgeLeft: 5
+      }
+    })
+
+    const menu = wrapper.vm.$refs.menu
+
+    expect(menu.nudgeTop).toBe(5)
+    expect(menu.nudgeRight).toBe(5)
+    expect(menu.nudgeBottom).toBe(5)
+    expect(menu.nudgeLeft).toBe(5)
+  })
 })