Issue 124661 - crash when loading and re-saving attached ppt file with a single customshape

check the equation array element number. If the number is greater than 128, the equation array will not be imported.

git-svn-id: https://svn.apache.org/repos/asf/openoffice/trunk@1587496 13f79535-47bb-0310-9956-ffa450edef68