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Committer:
William Grant
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Date:
2009-12-09 06:10:39 UTC
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mto:
This revision was merged to the branch mainline in
revision
1388.
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Revision ID:
grantw@unimelb.edu.au-20091209061039-nhkl2zbkh70cd01e
Display a nice error message if a worksheet attempts to reference a non-existent exercise.