RecyclerView with CardView-based items is not visible under PullRefreshLayout

Hi,

More details:
1. general layout:

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1. item layout:

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```

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Once I move RecyclerView outside of PullRefreshLayout, it works as expected.

Reproduce the issue with the provided PullRefreshLayout, RecyclerView, and CardView XML layouts, then compare it with the working layout where RecyclerView is moved outside PullRefreshLayout. Trace how PullRefreshLayout handles the nested RecyclerView and confirm that CardView-based items become visible while preserving pull-to-refresh behavior.

Written by the indexing model from the issue text.