5aaa4c2c5a
When dynamic caps change in the pipeline leads to a new buffer pool getting negotiated, the change is not propagated to Qt6GLWindow, which keeps using the old, now defunct, pool. Unset current pool on Qt6GLWindow in decide_allocation(). This will trigger a switch to the new pool inside create(). Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8676>