Who says it is required?
I don't see a need for that. However, I can recommend you a fs_clone.
That is, when you use hotpatch, the files in the run filesystem will be directly patched. So your run & patch fs will be out of sync.
So, if you want to synchronize the filesystem immediately after applying a patch in hotpatch mode, without waiting for the next prepare phase to be executed, you can execute a filesystem clone operation using “adop phase=fs_clone command”. Alternatively, yoyu can run adop phase=prepare to be sync. (in prepare phase- > adop syncs the patch file system using the findings of the adop config change detector, which will detect the newly applied patches to the RUN filesystem. )