[core] Assert check failed in TileCache::add

[syershov]

Platform: linux and macOS

Mapbox SDK version: checkout from master 1d49c23

I'm using sdk for parallel generate some thousand static map images and sometimes i have failed assert check in tiles cache.

mapbox-gl-native/src/mbgl/tile/tile_cache.cpp

Line 37 in 4c1d03c

assert(orderedKeys.size() <= size);

Workaround for me was correcting condition

mapbox-gl-native/src/mbgl/tile/tile_cache.cpp

Line 24 in 4c1d03c

if (tiles.emplace(key, std::move(tile)).second) {

if (!tiles.emplace(key, std::move(tile)).second) {

Please check this code.

[pozdnyakov]

@syershov thanks for filing this issue and for the root cause analysis! The proposed fix looks correct, would you like to make a PR or you'd like us to make it?

[syershov]

I will do it some later with tests.

[syershov]

@pozdnyakov please, can you take a look PR?

[pozdnyakov]

Fixed with #15943