Bug#1037063: libxml-libxml-perl: Seemingly incorrect handling of escaped characters in patterns

[Xan Charbonnet]

Thanks very much, and apologies for my flawed analysis.  It's good to 
know this will be fixed in bookworm.  We're not going to be able to 
upgrade immediately so it would be nice if it could be fixed in 
bullseye, but I understand if that isn't the decision.