Merge polly.(none):/home/kaa/src/maint/bug28878/my50-bug28878

into  polly.(none):/home/kaa/src/maint/bug28878/my51-bug28878


mysql-test/r/innodb_mysql.result:
  Auto merged
sql/field.cc:
  Auto merged
mysql-test/include/mix1.inc:
  Auto merged