It is true for OOO320_m4, and DEV300_m63. Not first priority I issued as m63 bug.
It is a part of my testing with Stock Charts, and as I try to find some problems
in more details raised  up in issue:103589.

Preparation:
- Open database file attached to this issue
- Go to the report section
- Create new report in dsign mode, add report header/footer to report,
- Select report footer,
- Click into Report toolbar, select Chart,
- Draw rectangle on Report footer, Chart will be inserted-Open
- Go to the Chart properties Data tab, 
- Select Content type "Table",
- Select "Content" Table1, the chart will show data.
- Double click on Chart, opens in edit mode, check Chart Type = "Bar", and Data
ranges, First Column as label allowed, and Data series tab: all other fields
listed (Volume,Open,Low,High,Close)
- Save it as "Empty", 
- Or open "Empty" Report in attached file.

Bug: 
- Double click on Chart, opens in edit mode, 
- Set chart type to Stock, and select Type "Stock Chart Type1", press OK,
- Open Data ranges, click to the data series, Data series you can find: Low,
Unnamed series; and data ranges messed up.
The changed chart can be found in "NEW_Type1_after_chart_type changes" report.

If you opens "Empty_with_bar_chart", and change Chart type to "Stock Chart
Type2" or "Stock Chart Type3", the data ranges messed up in different way.

Only if you select "Stock Chart Type4" the changes will happens nearly as you
expected. 
(Only thing what is wrong is a data series can not be set as in Chart in Calc,
only selectable from field names, which is a separate issue, and I will submit)