Rebuild of federation artifacts with watch flag

[ladler1]

After the update yesterday to version 20.3.8 the option to rebuild the federation artifacts seems not wo work anymore:
Pls compare this issue from old native federation: angular-architects#713

There are changes regarding the watch flag:

options.watch = watch;
ngBuilderOptions.watch = watch;

I can see that my exposed module:
exposes: {
ViewsModule

is written to the file system new (change date) but the changes are not written to the new file. After a complete restart the changes are present again.