Data export bug for simultaneous exports

[DLR-LY]

Triggering the export of data while previously initiated data is still exporting, the first export process seems to be cancled. At least the data will not be exported completely.
Also the message shown when the export is finished shows the second name for both export tasks.
I'll try and describe it a bit mor structured:

1. Initiate export of Data from 'Tool Run 1'
2. The export screen shows exporting of 'Tool Run 1'
3. Before the export is finished I start another export of 'Tool Run 2'
4. Very quickly I get the successful export method for 'Tool Run 2'
5. Later I get another successful export message again for 'Tool Run 2'
6. When I check the data for 'Tool Run 1' I can see that it was not completely exported.

[yocaba]

Reported in main issue tracker (https://mantis.sc.dlr.de/view.php?id=13862) and fixed it with recently released version 7.1.