fix error conditions

framework/hot.ts

@@ -194,11 +194,11 @@ export function reloadRecursive(filepath: string) {
 }
 
 export function unload(filepath: string) {
+  lazyMarko?.markoCache.delete(filepath)
   filepath = path.resolve(filepath);
   const module = cache[filepath];
   if (!module) return;
   delete cache[filepath];
-  lazyMarko?.markoCache.delete(filepath)
   for (const importer of module.cloverImporters ?? []) {
     unload(importer.filename);
   }

framework/marko.ts

@@ -1,3 +1,4 @@
+console.log("MARKO");
 export interface MarkoCacheEntry {
   src: string;
   scannedClientRefs: string[];
@@ -7,6 +8,7 @@ export const markoCache = new Map<string, MarkoCacheEntry>();
 
 export function loadMarko(module: NodeJS.Module, filepath: string) {
   let cache = markoCache.get(filepath);
+  console.log({ filepath, has: !!cache })
   if (!cache) {
     let src = fs.readFileSync(filepath, "utf8");
     // A non-standard thing here is Clover Sitegen implements

framework/watch.ts

@@ -35,10 +35,10 @@ function onSubprocessClose(code: number | null, signal: string | null) {
   console.error(`Backend process exited with ${status}`);
 }
 
-function rebuild(files: string[]) {
-  for (const file of files) {
-    incr.invalidate(file);
-  }
+async function rebuild(files: string[]) {
+  const hasInvalidated = files.length === 0
+    || (await Promise.all(files.map(incr.invalidate))).some(Boolean);
+  if (!hasInvalidated) return;
   incr.compile(generate.generate).then(({
     watchFiles,
     newOutputs,