popover can't dispose multile prompt dialog

[bigNeoneo]

those popovered dialog triggered by "selector", aka "delegated popover", can't closed by the anchor element.
Besides, those popovered dialog can't dispose after the anchor element was removed from dom tree either.

for example:
window.popoverIns = new bootstrap.Popover('body',{ selector:"myClass" });
window.popoverIns.dispose() not work
or , I change to next page in table, the anchor element removed from dom tree;
bootstrap. getInstance('.myClass').dispose() not work
those dialog always stick to top-right corner
plz, some one, help

[DenisLopatin]

Hi. Please provide a test example with the expected and actual behavior.