se-edu / addressbook-level4 / 4031

94%

Pull #792

travis-ci

EditCommand#preprocessUndoableCommand(): find and store personToEdit

EditCommand only stores the index of the personToEdit in its current
filteredPersonList.

As a result, redoing of EditCommand will be executed on the incorrect
person due to different indexing in different differing views.

Let's update EditCommand#preprocessUndoableCommand() to find and store
the personToEdit before its first execution.

By finding and storing the personToEdit in the preprocessing step,
this ensures future execution of the same command will be on the
correct person, and also removes the need to re-search the list during
each exeuction to find the same person.

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