Lazy loading with tabs - on open detail url - app is navigating to root of tabs

I need to have URL navigation (deeplinks) in my APP with tab-bar and I would like to use IonicPage for this, because I am using lazy loading too. So when I open some detail page, I see URL like this: http://localhost:8100/#/tabs/about/detail/2

but when I refresh the page, or when I open this URL in new tab, then URL is changed to home page tab http://localhost:8100/#/tabs/home/page-home and I see homepage screen.

Here is video in better resolution https://www.dropbox.com/s/5n3m4bgi6lnxf10/20180615_130856.mp4?dl=0
Here is repo with this application https://github.com/janstrbik/lazy-loading-tabs

What am I doing wrong?