fix: avoid calling functions emitted by observables (#132)

This fixes #131 at least for the case of useObservableEagerState. Looking at the code, it seems reasonable to expect that useObservableState and possibly other hooks suffer from the same issue. Those fixes would be more involved, though.

packages/observable-hooks/src/use-observable-eager-state.ts

@@ -67,7 +67,7 @@ export function useObservableEagerState<TState>(
         if (isAsyncEmissionRef.current) {
           // ignore synchronous value
           // prevent initial re-rendering
-          setState(value);
+          setState(() => value);
         } else {
           secondInitialValue = value;
         }
@@ -85,7 +85,7 @@ export function useObservableEagerState<TState>(
     if (!isAsyncEmissionRef.current) {
       // fix #86 where sync emission may happen before useEffect
       if (secondInitialValue !== state) {
-        setState(secondInitialValue);
+        setState(() => secondInitialValue);
       }
     }