Expose `exists` and `hasDeleted` on Source from its `_cache`.
Expose `exists` and `hasDeleted` on Source from its `_cache`.
orbitjs/orbit.js,beni55/orbit.js,SmuliS/orbit.js,SmuliS/orbit.js,greyhwndz/orbit.js,rollokb/orbit.js,opsb/orbit.js,greyhwndz/orbit.js,jpvanhal/orbit.js,orbitjs/orbit.js,beni55/orbit.js,jpvanhal/orbit-core,opsb/orbit.js,jpvanhal/orbit.js,jpvanhal/orbit-core,orbitjs/orbit-core,rollokb/orbit.js