[Nano-devel] [PATCH] prevent position history overwrites across multiple instances of nano

[Brand Huntsman]

Nano's position, search and execute histories are overwritten by the
last closed instance. Open two instances, search in both, change position and 
then close both. The last closed instance overwrites everything the other 
instance saved.

This patch checks the modification time of filepos_history every time an 
instance updates a position. If changed, it reloads filepos_history before 
updating its internal position list and always saves filepos_history after 
updating a position. The update/reload only happens when closing nano or a 
buffer, so the overhead of checking and reloading isn't a big deal. I've been 
using this patch for a week without any issues.

Fixing the search/execute histories might not be possible since it would alter 
the internal history of each instance, and no one would want that to happen. 
They aren't important to fix but file position history is worthless when 
overwritten.

0001-prevent-position-history-overwrites-across-multiple-instances-of-nano.patch
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