[ChangePassword] error_message placeholder always empty

[jonleverrier]

MODX 2.6.1 / Login 1.9.5

Issue

The error message placeholder always returns empty when using the Change Password snippet. Looking at the code, the error message placeholder should be [[+error_message]]. I've tried calling this cached, uncached, prefixed and not prefixed with no success.

The success message works fine.

Expected behaviour

Upon error / form validation, the [[+error_message]] placeholder to be set.

Perhaps similar to this issue:
#113