Archive is Not Actually Overwriting

[johnpatek]

While working with another project, it was observed that the archive is not actually updated when attempting to overwrite an entry. The fix for this issue can be implemented and verified as follows:

1. Create an archive using hyperpack with a test directory with an HTML file.
2. Edit the contents of one of the HTML file.
3. Use hyperpage::reader to verify that it reflects the contents of the updated file for the corresponding path.