Description

When customer import a CSV file with a em dash (–) in the content, JIRA will treat it as invalid characters and import it as ? into the system. Em dash (–) is an utf8 character and is a longer dash symbol than the normal dash ( - ). However, JIRA CSV importer treat it as a non utf8 character when importing the issue content. For details, please refer to this documentation.
 

Steps to reproduce

1. Create a CSV file which contains em dash (–) in description or summary field and save it.
2. Login JIRA and use CSV importer to import the CSV file
3. Ignore the warning message show during the import
   
4. Check the issue after successfully imported the issue

Expected result

Actual result

Workaround

Replace all the em dash (–) to normal dash ( - ) in the CSV file and import