cubicweb-tracker #1299900 a version can be given the name of an existing one [resolved]

When modifying a version (I have not checked at creation time), one can give a Version the name of an existing version for the project, making then hard to display or edit it.

priorityimportant
typebug
done in1.7.0
load0.300
load left0.000
closed by<not specified>