The original meaning of this thread is that it is easy to fix individual X-ray mistaken identity errors yourself, and that still applies. But it can be time consuming and tedious if there are a large number of such errors in a single book. However, once the file to make the fix is constructed and published, it is still quick and easy for others to apply to the same book. The same fix file should work for both KF8 (AZW3) and KFX forms of the book even though the XRAY.entity.{ASIN}.asc files for the two forms are different.
I've created a repository at
https://github.com/jps-e/fix_xray which currently has fixes for two books,
Quiet ... by Susan Cain and
War and Peace by Leo Tolstoy. Each probably has more errors, which I will fix as I find them or they get reported as an issue at the repository or in my thread
https://www.mobileread.com/forums/sh...d.php?t=309190
I am also soliciting reports for other books at the repository and in the above thread.
I've made a fix for the over 300 errors I found in the the XRAY file for
SPQR by Mary Beard, added that to the above github repository released as v0.1.2.
The latest release is attached here and all releases are available at the repository in tar.gz and zip format.