for wildcard values.
The server ignored escape character before wildcards during
the calculation of priority values for sorting of a privilege
list. (Actually the server counted an escape character as an
ordinary wildcard like % or _). I.e. the table name template
with a wildcard character like 'tbl_1' had higher priority in
a privilege list than concrete table name without wildcards
like 'tbl\_1', and some privileges of 'tbl\_1' was hidden
by privileges for 'tbl_1'.

The get_sort function has been modified to ignore escaped
wildcards as usual.



mysql-test/r/grant3.result:
  Added test case for bug#31194.
mysql-test/t/grant3.test:
  Added test case for bug#31194.
sql/sql_acl.cc:
  Fixed bug#31194.
  The server used the wild_prefix escape character (usually \-character)
  like % and _ wildcards in the get_sort function for sorting weights
  calculation.
  
  The get_sort function has been modified to ignore escaped wildcards
  and alone escapes like in the wild_case_compare function.