clone plus plugin (bob swift) errors out on issue watcher fields

Description

When attempting to clone++ or clone+ an issue with this plugin I get an error that the issues watchers custom field is a problem and will not be copied. I have contacted Bob Swift and they can't figure it out. They asked that I contact you.

Environment

Atlassian JIRA Project Management Software (v7.1.6#71010-sha1:428b2b3)
CentOS release 6.7 (Final)
[root@fsl-jira7 ~]# java -version
java version "1.7.0_79"
OpenJDK Runtime Environment (rhel-2.5.5.4.el6-x86_64 u79-b14)
OpenJDK 64-Bit Server VM (build 24.79-b02, mixed mode)

License SEN-7688063

Status

Assignee

Tibor Hegyi

Reporter

p.noack@samsung.com

Labels

None

Access to limited visibility issues

None

Product platform

None

Affects versions

3.1.3

Priority

Critical
Configure