Fix  <http://savannah.cern.ch/bugs/?99523> : In the DAQ system for the AEgIS (AD6) experiment we update ROOT files via TTree::AutoSave("saveself"), and concurrently read them upon calling TTree::Refresh(), as advertised.
Fix  <http://savannah.cern.ch/bugs/?99523> :
In the DAQ system for the AEgIS (AD6) experiment we update ROOT files via
TTree::AutoSave("saveself"), and concurrently read them upon calling
TTree::Refresh(), as advertised.

Occasionally, but always after reporting the "Error R__unzip_header: error in
header" message (see backtrace below), the read code would sit in a long loop
or/and eventually get a SEGV and crash.

It looks that when R__unzip_header fails (which may be the case when the data
are concurrently updated) in TKey.cxx, a variable ('nout') is left
uninitialised. It can be non-zero, thus leading to further data processing.


git-svn-id: 9d02132d8e1217b86764d694e1605987040d84e5@48113 27541ba8-7e3a-0410-8455-c3a389f83636

tc3t/qoot,kirbyherm/root-r-tools,strykejern/TTreeReader,Dr15Jones/root,kirbyherm/root-r-tools,ffurano/root5,ffurano/root5,strykejern/TTreeReader,tc3t/qoot,strykejern/TTreeReader,tc3t/qoot,strykejern/TTreeReader,strykejern/TTreeReader,Dr15Jones/root,tc3t/qoot,kirbyherm/root-r-tools,ffurano/root5,tc3t/qoot,kirbyherm/root-r-tools,Dr15Jones/root,tc3t/qoot,tc3t/qoot,kirbyherm/root-r-tools,Dr15Jones/root,tc3t/qoot,Dr15Jones/root,Dr15Jones/root,tc3t/qoot,strykejern/TTreeReader,kirbyherm/root-r-tools,tc3t/qoot,ffurano/root5,ffurano/root5,Dr15Jones/root,kirbyherm/root-r-tools,strykejern/TTreeReader,ffurano/root5,ffurano/root5