The GROUP_CONCAT uses its own temporary table. When ROLLUP is present
it creates the second copy of Item_func_group_concat. This copy receives the
same list of arguments that original group_concat does. When the copy is
set up the result_fields of functions from the argument list are reset to the
temporary table of this copy.
As a result of this action data from functions flow directly to the ROLLUP copy
and the original group_concat functions shows wrong result.
Since queries with COUNT(DISTINCT ...) use temporary tables to store
the results the COUNT function they are also affected by this bug.

The idea of the fix is to copy content of the result_field for the function
under GROUP_CONCAT/COUNT from  the first temporary table to the second one,
rather than setting result_field to point to the second temporary table.
To achieve this goal force_copy_fields flag is added to Item_func_group_concat
and Item_sum_count_distinct classes. This flag is initialized to 0 and set to 1
into the make_unique() member function of both classes.
To the TMP_TABLE_PARAM structure is modified to include the similar flag as
well.
The create_tmp_table() function passes that flag to create_tmp_field().
When the flag is set the create_tmp_field() function will set result_field
as a source field and will not reset that result field to newly created 
field for Item_func_result_field and its descendants. Due to this there
will be created copy func to copy data from old result_field to newly 
created field.

into mysql.com:/M41/rpmspec-4.1

into  selena.:H:/MYSQL/src/#06536-mysql-4.1

into  mysql.com:/usr/local/mysql/mysql-4.1-fixrace

  Give space for second and third slave port

errorneously abort reporting failure to kill child processes, where in
reality the problem was merely that the child had become a zombie because
of missing waitpid() call.

into mysql.com:/Users/kent/mysql/bk/mysql-4.1

into  poseidon.ndb.mysql.com:/home/tomas/mysql-4.1

Bug #17257 ndb, update fails for inner joins if tables do not have Primary Key

change: the allocated area by setValue may not be around for later, store hidden key in special member variable instead

into  perch.ndb.mysql.com:/home/jonas/src/mysql-4.1

  Introduce new variable c_newest_restorable_gci
    which is set _after_ both GCP_SAVE and COPY_GCI
    
  This variable is used when cutting redo (calcKeepGci)
  
  Also make sure complete GCI is run inbetween LCP's

  fix corruption due to page 0, file 0 gets released

Removed 'delayed' to make the test deterministic (as the bug itself has nothing to do with 'delayed').

into  sanja.is.com.ua:/home/bell/mysql/bk/work-4.1

into  april.(none):/home/svoj/devel/mysql/merge/mysql-4.1

into  april.(none):/home/svoj/devel/mysql/merge/mysql-4.1

into  april.(none):/home/svoj/devel/mysql/merge/mysql-4.1

Bug #17158  	load data infile of char values into table of char with no (PK) fails to load
Bug #17081  	Doing "LOAD DATA INFILE" directly after delete can cause missing data

  better error message on invalid config change

  ndb - error while restarting in dict
        improve error message when changed config leads to failed restart

Fixed that fulltext query + union results in unexpected behaviour.

           MATCH and FULLTEXT
Fixed that fulltext query using PS results in unexpected behaviour
when executed 2 or more times.

into  devsrv-b.mysql.com:/space/magnus/my41-bug15302

 - Change "mysql_create_db" to not call "send_ok" if in silent mode i.e. called from "load_master_data"
 - Change mysqltest to detect when there aren't as many warnings available as was reported.

into  mysql.com:/home/alexi/innodb/mysql-4.1-merged

  Applied innodb-4.1-ss20 snapshot.

into  mysql.com:/home/alexi/innodb/mysql-4.1-merged

  Applied innodb-4.1-ss17 snapshot.
  Do not mistake TABLENAME_ibfk_0 for auto-generated id.

  Aligned the MTR_BUILD_THREAD policy to shell version

into mysql.com:/Users/kent/mysql/bk/mysql-4.1

  Bug#16780: Extend port range to make space for 5.1 NDBCLUSTER_PORT_SLAVE

into  neptunus.(none):/home/msvensson/mysql/mysql-4.1

into  c-5c0be253.1238-1-64736c10.cust.bredbandsbolaget.se:/home/pappa/bug12796