Fix default text style bug (brought by previous optimize).

src/util/graphic.js

@@ -811,11 +811,14 @@ function getAutoColor(color, opt) {
 // text position changing when hovering or being emphasis should be
 // considered, where the `insideRollback` enables to restore the style.
 function applyDefaultTextStyle(textStyle) {
-    if (textStyle.textFill != null) {
+    var opt = textStyle.insideRollbackOpt;
+
+    // Only insideRollbackOpt create (setTextStyleCommon used),
+    // applyDefaultTextStyle works.
+    if (!opt || textStyle.textFill != null) {
         return;
     }
 
-    var opt = textStyle.insideRollbackOpt;
     var useInsideStyle = opt.useInsideStyle;
     var textPosition = textStyle.insideRawTextPosition;
     var insideRollback;

test/axis-interval.html

@@ -100,7 +100,9 @@ under the License.
                     },
                     xAxis: {
                         type: 'time',
-                        splitNumber: 7
+                        minInterval: 3600 * 1000,
+                        maxInterval: 3600 * 1000
+                        // splitNumber: 7
                     },
                     yAxis: {},
                     series: [

test/bar.html

@@ -138,7 +138,7 @@ under the License.
                         xAxisIndex: 0
                     },
                     toolbox: {
-                        top: 25,
+                        top: 50,
                         // right: 20,
                         feature: {
                             magicType: {
@@ -179,6 +179,9 @@ under the License.
                         }
                     },
                     tooltip: {},
+                    grid: {
+                        top: 100
+                    },
                     xAxis: {
                         data: xAxisData,
                         name: '横轴',