The crash happens because we change share->partition_info where 'share' is global struct
(it affects other threads which use the same 'share').
It causes discrepancy between 'share' and handler data. 
The fix:
Move share->partition_info update into WFRM_INSTALL_SHADOW part which is protected by OPEN_lock.


sql/sql_partition.cc:
  fast_end_partition: added close_thread_tables() for the case when error occures
  fast_alter_partition_table: added close_thread_tables() for the case when error occures
sql/sql_table.cc:
  The crash happens because we change share->partition_info where 'share' is global struct.
  It causes discrepancy between 'share' and handler data.
  The fix:
  Move share->partition_info update into WFRM_INSTALL_SHADOW part which is protected by OPEN_lock.