Project: talenddataquality
Issue TDQ-4957: import the export file to 5.1 project 
(1). open a new project, create a column analysis, select system indicators , analysis can run well. (2). change some information about the system indicators which be used by the analysis: one change name, one change description/purpose, one change definition. (3). export the analysis, have to select the system indicators. export as a zip file. (4)-1. open a new project, create a dbconnection named "aa", import the exported file in step 3. have found that the "aa" have been deleted, can refer to the log, we should not delete "aa" (4)-2 open a new project, create a dbconnection named "aa", create a column analysis named "analysisaa". import the exported file in step 3, errors show. recheck the reporsitory, the "analysisaa" disappear, dbconnection "aa" is ok. only the analysis in zip file imported, but no columns, why analysis in zip file can import-- the used indicators can not imported, why the original analysis in the project be deleted. if an item in repository is dependend by oter items, even if we checked "overwrite" the item can not be overwriten right? so the new one can not be imported. in step (4)-1 and (4)-2, in the import dialog, there is inform abount the "aa" dbconnection can not be overwrite(overwrite checked), in fact this dbconnection can be selected if overwrite check box is not checked. but now, it is not. in (4)-2 I have not test about the project contains report, but we also should make it well.
Story points: 23