Error when username contains special characters or a space while creating an issue via JINC

Description

Hi,
what a brilliant idea for an addon (as always from K15T).
I configured everything as described in the docs. Connection to Jira should be OK, as I can choose from the project & issue type dialog.
But when I try to create a new issue I get an error message:


(See attachment if not embedded)
Jira log does not display any error.
In Confluence I get:

Caused by: java.net.URISyntaxException: Illegal character in query at index 98: https://connect.schaeferbarthold.de/jira/rest/api/1.0/users/picker?fieldName=assignee&query=Rusch, Jan-Peter

when using the Jira Form macro without any changes.
With the second example (Remove the label & assigne fields) there's no logging on Confluence or Jira side. The error message shown in the image is always displayed.

Any ideas or hints?

Best regards,

Jan

Environment

Confluence 5.9.11
Jira 7.2.1
Both on different Windows 2012 R2 64bit servers

Status

Assignee

Andreas Spall (evolu.software)

Reporter

JanR

Labels

None

Participant

None

Sprint

None

Fix versions

Affects versions

1.0.3

Priority

Blocker
Configure