[Bug]: stackBehavior="switch" unmounts the minimized modal and closes child modals immediately in v5.2.14 reanimated v4

[mo-elnady]

Version

v5

Reanimated Version

v4

Gesture Handler Version

v2

Platforms

Android

What happened?

When using stackBehavior="switch" (the default stack behavior) on stacked bottom sheets, presenting a nested child bottom sheet (rendered inside the React tree of the parent sheet) causes the parent sheet to completely unmount/dismiss instead of minimizing.

Because the parent sheet is unmounted, its React subtree is destroyed, causing the newly opened child sheet to unmount and close immediately.

Reproduction steps

1. Render a parent BottomSheetModal (Modal A).
2. Inside the children of Modal A, render a child BottomSheetModal (Modal B).
3. Present Modal A.
4. Trigger Modal B to present.
5. Modal B will briefly mount/appear and then immediately disappear because Modal A gets unmounted/dismissed entirely.

Reproduction sample

https://snack.expo.dev/@gorhom/bottom-sheet---issue-reproduction-template

Relevant log output

[rozhkovs]

After updating Expo from “55” to “56” and @gorhom/bottom-sheet from “5.2.8” to “5.2.14”, this started happening.

bottom_sheet.mov

[rozhkovs]

I think this started happening after PR #2664

[choubari]

I have the same issue. With stackBehavior="switch", when I present a child modal that's rendered inside the parent's tree, the parent gets dismissed and unmounted instead of minimized, and the child closes with it right away.

I applied a change locally and it fixed it for me.
I opened a PR for it here: #2698