VuoCompiler isn't compiling subcomps that have changed

i'm attaching a .zip which contains source code, a procedure, and all the attendant files for a reproducible test case. more generally:

1. create a .vuo composition, save it to the node library
2. create another composition that instantiates and uses the first comp you made as a subcomposition
3. launch an application that uses a VuoCompiler to compile and link an executable. run the executable, and observe the output.
4. modify the subcomposition in a manner that would be visible
5. without quitting, compile/link the executable again. run the executable, and observe the output- i would expect the changes that were made to the subcomposition to be visible, but they are not: the compiled output reflects the state of the composition when it was compiled for the first time since the app was launched.