Strange XML serialization bug.

[aquasync]

This is a pretty strange bug.

Essentially, when saving my xml out to a file, using the .to_s method of REXML::Document, I'm getting elements where the tag name includes the xpath index number (such as <table:table-row[2] .... />) (I'm processing some .odt files.)

I narrowed down the changes made to my code to make it work again. Disabling my call to .xpath (REXML::Element), caused it to no longer occur. That seemed odd, so I fiddled further, and eventually found that changing the line:

rv << "#{idx+1}" to rv += "#{idx+1}"

in rexml/element.rb _to_xpath_helper, made it work. Which defies my understanding, perhaps << is inplace, and is modifiying expanded_name?

Anyway, let me know if you want more info/explanation.

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I'm using REXML 3.1.3, and have the same problem with ruby 1.8.4 mingw32, and cygwin.

[ser]

The source code shows that the rv variable is a clone of the expanded node name, so in-place modification shouldn't affect the results. It should have been fixed by changeset:1137, and should be fine in 3.1.4.

If this is still happening I'll re-open this; if so, please post a test case.