[Freeassociation-devel] [regression] libical 0.48 escapes X properties, but doesn't unescape them

[Milan Crha]

	Hi,
I found a regression (actually, not me, but reporter of [1]'s downstream
bug found an issue which led to this being found) in libical 0.48. It
escapes strings on set of X properties, but doesn't unescape them on get.

See the attached test2.c, where I try to set a value which contains
quotes to an X property, and when reading it I get the quotes escaped.
The result of the test program looks like this:
> set 'string with "quotes" used', got 'string with \"quotes\" used',
> same:no!!!

This breaks CalDAV, which stores ETag values as they are received by the
server, and servers I tested this with (which is Google and DAViCal)
return ETags quoted, and expect them the same.

I've a workaround in evolution's CalDAV for now, but I do not know what
else this new behavior can break, thus it'll be good to have this fixed,
because it's expected that one gets what one sets.

Note the standard properties like SUMMARY don't suffer of this issue.

	Thanks and bye,
	Milan

[1] https://bugzilla.gnome.org/show_bug.cgi?id=669003
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