Steps步骤条中的 nz-step 用 ngFor 生成时控制台报 Error

[xcorpio]

Version

1.5.0

Environment

MacOS, Chrome 69.0.3497.92

Reproduction link

https://stackblitz.com/edit/ng-zorro-antd-start-tusl9b?file=src%2Fapp%2Fapp.component.html

Steps to reproduce

1. 打开 https://stackblitz.com/edit/ng-zorro-antd-start-tusl9b?file=src%2Fapp%2Fapp.component.html
2. 点击按钮
3. 查看 Console

What is expected?

不报Error

What is actually happening?

报了

NzStepComponent.html:1 ERROR Error: ExpressionChangedAfterItHasBeenCheckedError: Expression has changed after it was checked. Previous value: 'ngIf: false'. Current value: 'ngIf: true'.
    at viewDebugError (core.js:7601)
    at expressionChangedAfterItHasBeenCheckedError (core.js:7589)
    at checkBindingNoChanges (core.js:7691)
    at checkNoChangesNodeInline (core.js:10552)
    at checkNoChangesNode (core.js:10541)
    at debugCheckNoChangesNode (core.js:11144)
    at debugCheckDirectivesFn (core.js:11072)
    at Object.eval [as updateDirectives] (NzStepComponent.html:1)
    at Object.debugUpdateDirectives [as updateDirectives] (core.js:11061)
    at checkNoChangesView (core.js:10440)

我本地加载还有，这个在链接中没复现

NzStepComponent.html:1 ERROR Error: ExpressionChangedAfterItHasBeenCheckedError: Expression has changed after it was checked. Previous value: 'null: 1'. Current value: 'null: 2'.
    at viewDebugError (core.js:7601)
    at expressionChangedAfterItHasBeenCheckedError (core.js:7589)
    at checkBindingNoChanges (core.js:7691)
    at checkNoChangesNodeInline (core.js:10552)
    at checkNoChangesNode (core.js:10541)
    at debugCheckNoChangesNode (core.js:11144)
    at debugCheckRenderNodeFn (core.js:11098)
    at Object.eval [as updateRenderer] (NzStepComponent.html:1)
    at Object.debugUpdateRenderer [as updateRenderer] (core.js:11087)
    at checkNoChangesView (core.js:10442)

Other?

不影响实际数据，但是上面的错误

[lock]

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