FileContract ID is same for two files
I have some doubts about file contract which Sia is creating during allowance creation. I made a small utility where it returns the FileContractID associated with each file. But the FilecontractID is duplicated in files. Suppose i uploaded two files ( file1.txt and file2.txt) and after upload file1.txt is having file contract id ( 3e63e7182737c733b62f069bf8f55e6033a5cbdd0090bee608f4c63f5770a83d) and the file2 is also having the same file contract id ( 3e63e7182737c733b62f069bf8f55e6033a5cbdd0090bee608f4c63f5770a83d) so is it possible or not. Pls help me to understand about it.
Thanks in advance