LRS API integration in Forums causing error in percentage grading

In SAK-24859, the forums grading was reworked to so that grading respects the grade entry type of the gradebook. However, the integration with the LRS API (KNL-1045) is now causing a stack trace when grading by percentage.

Set up a percentage gradebook with at least one gradebook item.
In Forums, create a topic and link it to your gradebook item.
Attempt to grade a forum posting.

Snippet from stack trace:
caused by: javax.faces.el.EvaluationException: java.lang.IllegalArgumentException: score raw (85.0) must not be greater than max (0.0) inclusive
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:92)
caused by: java.lang.IllegalArgumentException: score raw (85.0) must not be greater than max (0.0) inclusive
at org.sakaiproject.event.api.LearningResourceStoreService$LRS_Result.setRawScore(LearningResourceStoreService.java:852)
at org.sakaiproject.event.api.LearningResourceStoreService$LRS_Result.setScore(LearningResourceStoreService.java:880)
at org.sakaiproject.event.api.LearningResourceStoreService$LRS_Result.<init>(LearningResourceStoreService.java:809)
at org.sakaiproject.tool.messageforums.DiscussionForumTool.getLRS_Result(DiscussionForumTool.java:9823)
at org.sakaiproject.tool.messageforums.DiscussionForumTool.getStatementForGrade(DiscussionForumTool.java:9818)
at org.sakaiproject.tool.messageforums.DiscussionForumTool.processDfGradeSubmit(DiscussionForumTool.java:6371)
at org.sakaiproject.tool.messageforums.DiscussionForumTool.processDfGradeSubmitFromDialog(DiscussionForumTool.java:6258)