Compilation server(haxe 5.0.0-preview.1): Context.unify() returns wrong result

Stuff: `haxe 5.0.0-preview.1`
I have a macro function which calls the code below:
```
trace("TYPES: ", type1, type2);
final unified = Context.unify(type1, type2);
trace("UNIFIED: ", unified);
```
Compilation server gives error result of unify function after any source code editing:

After restarting haxe server the result is correct:

P.S. `haxe 4.3.7` compilation server works fine.