Framebuffer scrambling/corruption during render

[TimSylvester]

An un-named user reports observing the following in production with 10.3.1 - 10.3.2-pre on a custom deployment of Android 11 with unspecified hardware:

Not pictured are two problems with marker symbols which may or may not be related:

• Some symbols seems partly rendered, being just solid black, possibly "shadows"
• Some symbols are missing, seemingly in a rectangular area, presumably a tile (possibly related to Missing data for single tiles when using GeoJsonSource #2410)

Additionally, the "scrambling" of the map does not affect the symbols, which are rendered normally on top of it, implying that it occurred on the framebuffer between layers.

Symbols are added to the map with a dynamically-constructed GeoJSONSource and style layer.