@Echo: the stacking of a popover on a popover covers the 1st popover completely. I don’t see how to get back to the 1st popover.
With the code I use the 2nd popover is a bit below the 1st one so it’s easy to go back to the 1st one. The only thing is that even if I increase the height to e.g. 1000 px it does not change the popover size.
BTW, I am on 0.9.3 too.
.popover.hover-popover {
position: absolute;
z-index: var(--layer-popover);
transform: scale(0.9); /* makes the content smaller */
max-height: 800px; /* was 300 */
min-height: 100px;
width: 500px; /* was 400 */
overflow: hidden;
padding: 0;
border-bottom: none;
}