ticket,summary,type,release,owner,status,created,modified,_description,_reporter
11700,null values,enhancement,1.0,,new,2014-04-25T14:21:43+02:00,2018-09-21T19:28:46+02:00,"When data contains nulls like:
|| Sp_data	 || Ideal	 || Real ||
|| 2013-06-22 00:00:00+02:00 || 39 || 39 ||
|| 2013-06-22 00:00:00+02:00 || || 39 ||
|| 2013-06-23 00:00:00+02:00 || 36 || ||
|| 2013-06-24 00:00:00+02:00 || 33 || 32 ||

error is raised:
{{{
All series on a given axis must be of the same data type
}}}

when null value is replaced by exact value ex:
|| Sp_data	 || Ideal	 || Real ||
|| 2013-06-22 00:00:00+02:00 || 39 || 39 ||
|| 2013-06-22 00:00:00+02:00 || 1 || 39 ||
|| 2013-06-23 00:00:00+02:00 || 36 || 1 ||
|| 2013-06-24 00:00:00+02:00 || 33 || 32 ||

chart is ok

I added to `[vis]` in `trac.ini`:
{{{
options = interpolateNulls:true
}}}

but result is the same as without this line.",Jarosław Pękala <jaroslaw.pekala@…>
9665,Visualization problem with Internet Explorer,defect,0.12,,new,2012-01-05T15:24:02+01:00,2018-09-21T19:28:46+02:00,"Charts are not displayed when using Internet Explorer, version 6 and 9.",anonymous