With matplotlib 0.98.5.2-1ubuntu2 I cannot reproduce this bug. So I assume, that the bug is fixed in Ubuntu 9.04. Please reopen the bug report if it is not the case.
With matplotlib 0.98.5.2-1ubuntu2 I cannot reproduce this bug. So I assume, that the bug is fixed in Ubuntu 9.04. Please reopen the bug report if it is not the case.