p-pop-over avoid reposition while open

[stackoverfloweth]

Current use case is p-select, which uses p-pop-over to display options. PSelect prefers bottomLeft to topLeft, but often with too many items it will end up at the top. PSelect offers a search that limits options and can cause PPopOver to reposition to below when the threshold is met to fit in the preferred bottomLeft. Suggestion is to avoid repositioning by default when the content is currently open