Don't think so. AE specifically tries to use the media formats' native options for timecode and metadata nad when using Dynamic Link it also uses the media cache to store additional info. you should look into capturing all information with a script. it's the only way to be 100% everything ends up where you want it.
It's a bit abstract but one thing I've done to achieve to get the metadata of files is do a system.systemCall() and run a command line script that rips the information out to a separate file. Used ExifTool by Phil Harvey which is an amazing command line tool for metadata manipulation.
This is a total hack BTW because I couldn't get my head around accessing the metadata in AE.
Thank you for the answer. I lived without it. But good to know in the future.