Issues when turning hard pages with display single

[EG-Web]

If the display option is set to "single", - the first hard page won't turn when the corner is dragged - an error will be shown when dragged/turning the last hard page: Uncaught b {name: "TurnJsError", message: ""609" is not a valid page"} (where 609 exceeded the maximum number of pages (608) by 1)

Is there any possible solution to this?

I have also a feature request: If someone removed the class "hard" from pages after the flipbook is being initialized and while the display is "single", the plugin should check if the page is hard or not before dragging from the corner; thus avoiding those issues.

[grischpel]

I also have this issue

[muster-mark]

I also have this issue in the latest release.