Fix autorun on $.ajax error

Closes #190 and #202
Revert "Merge pull request #198 from pansapien/fix-filteredrecordarray-on-load"

This reverts commit 92dc1652ed1dbfbc1f5a40dd8a24192723e47e8d, reversing
changes made to 824ce32464553ac1cb7d7118d25496c77a515ff2.
don't trash new hasMany relationships