Crash in entry table

[hsoft]

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Application Identifier: com.hardcoded_software.moneyguru
Application Version: 1.7.0

Traceback (most recent call last):
File "/Applications/$$$/Budget softwares/MoneyGuru v1.6.10/moneyGuru.app/Contents/Resources/mg_cocoa.plugin/Contents/Resources/mg_cocoa.py", line 410, in valueForColumn_row_
File "core/gui/entry_table.pyc", line 233, in balance
File "core/gui/entry_table.pyc", line 169, in _the_balance
AttributeError: 'NoneType' object has no attribute 'is_credit_account'
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[hsoft]

This happens when you click on a Show account arrow for an entry that has no transfer. The shown account then becomes None and all hell breaks loose.

[hsoft]

(from [d39cf3c2dc97]) [#109 state:fixed] Fixed crash on entry table's show account when the transaction contained unassigned splits.
http://bitbucket.org/hsoft/moneyguru/changeset/d39cf3c2dc97/