Fix double-free error in generic importer.

[Christian Stimming]

Log Message:
-----------
Fix double-free error in generic importer.

2005-10-16  Christian Stimming  <stimming at tuhh.de>

	* src/import-export/import-backend.c: Woohoo! Tracked down and
	fixed a nasty double-free error when the importer reconciled
	existing transactions.

Tags:
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gnucash-gnome2-dev

Modified Files:
--------------
    gnucash:
        ChangeLog
    gnucash/src/import-export:
        import-backend.c
        import-main-matcher.h