rabbitmq pkg install failure

[Uni T. Runker]

I have submitted a bug.

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=244292

$ su -
Password:
# pkg install rabbitmq
Updating FreeBSD repository catalogue...
FreeBSD repository is up to date.
All repositories are up to date.
Checking integrity... done (0 conflicting)
The following 1 package(s) will be affected (of 0 checked):

New packages to be INSTALLED:
        rabbitmq: 3.8.1_1

Number of packages to be installed: 1

The process will require 13 MiB more space.

Proceed with this action? [y/N]: y
[1/1] Installing rabbitmq-3.8.1_1...
===> Creating groups.
Using existing group 'rabbitmq'.
===> Creating users
Creating user 'rabbitmq' with uid '135'.


*pw: user 'rabbitmq' disappeared during updateinstall: unknown user
rabbitmqpkg: PRE-INSTALL script failed*
#

I see user 'rabbitmq' and group 'rabbitmq' under /etc.