What happens if two or more binary patches modify same file from $ORACLE_HOME

Hi

I was wondering what happens when I am about to start applying two or more binary patches that would modify the exact same file...?

For example, lets say that pXXX modifies file1 and pYYY modifies also file1.

(file1 is present in $ORACLE_HOME)

If I apply pXXX first, will the changes from pYYY overwrite changes made by pXXX and vice versa..?

I mean, ofcourse I run "opatch prereq CheckConflictAgainstOHWithDetail -ph ./" and "opatch analyze" against this OH. But will these commands identify this problem..?

Since now I have basically only applied patches for specific bugs (not patch sets or bundle patches).