Comment # 6 on bug 84710 from Patrick Ohly

This is most likely an undesired side effect of this performance-enhancement
commit:

commit a2e990e51fbdff04b12ab881f2348c42eb3bc535
Author: Patrick Ohly <patrick.ohly@intel.com>
Date:   Wed Sep 10 10:52:10 2014 +0200

    PBAP: use raw text items

    This avoids the redundant parse/generate step on the sending
    side of the PBAP sync.

What I had not taken into account is that the parse/generate step is important
for the item comparison during a cache sync.

I need to think some more about a proper way to solve this, and also ensure
that I have automated test coverage for this kind of failure.

In the meantime, can you try with the commit above reverted? The majority of
the performance enhancement in 1.4.99.4 was elsewhere, so it shouldn't add back
that much overhead.