Fix constant rebuilds in watch mode

Ref #2844

Author: Gerrit0

CHANGELOG.md

@@ -18,6 +18,7 @@ title: Changelog
 -   Fixed an issue with `@class` incorrectly handling mapped types, #2842.
 -   TypeDoc will now consider symbols to be external only if all of their declarations are external
     so that declaration merged members with global symbols can be documented, #2844.
+-   Fixed an issue where TypeDoc would constantly rebuild, #2844.
 
 ### Thanks!
 

src/lib/application.ts

@@ -530,7 +530,7 @@ export class Application extends AbstractComponent<
 
         const host = ts.createWatchCompilerHost(
             tsconfigFile,
-            {},
+            this.options.fixCompilerOptions({}),
             ts.sys,
             ts.createEmitAndSemanticDiagnosticsBuilderProgram,
             (diagnostic) => this.logger.diagnostic(diagnostic),
@@ -643,30 +643,6 @@ export class Application extends AbstractComponent<
             }
         };
 
-        const origCreateProgram = host.createProgram;
-        host.createProgram = (
-            rootNames,
-            options,
-            host,
-            oldProgram,
-            configDiagnostics,
-            references,
-        ) => {
-            // If we always do this, we'll get a crash the second time a program is created.
-            if (rootNames !== undefined) {
-                options = this.options.fixCompilerOptions(options || {});
-            }
-
-            return origCreateProgram(
-                rootNames,
-                options,
-                host,
-                oldProgram,
-                configDiagnostics,
-                references,
-            );
-        };
-
         const origAfterProgramCreate = host.afterProgramCreate;
         host.afterProgramCreate = (program) => {
             if (