Fix twice error dialog if hash could not be retrieved
Related to issue #2697 (closed), resolves comment in merge request !44 (merged).
Signed-off-by: Jiří Engelthaler EngyCZ@gmail.com
Related to issue #2697 (closed), resolves comment in merge request !44 (merged).
Signed-off-by: Jiří Engelthaler EngyCZ@gmail.com