Add Git commits fails with 'partial entry'

I've been struggling to find a way to add individual Git commits by hash #, both from the GUI and the cli tool.  Both of them return the cryptic error "partial entry".  Here's the command I'm attempting:

ccollab --debug addchangelist 49745 8fe9ef797a1ad4f42f96bccd23ea01243faf918d

Here is the stack trace from the CLI tool:

FINE: Error running command addchangelist
com.smartbear.cmdline.ScmCommunicationException: partial entry
	at com.smartbear.scm.impl.git.GitLogCmd.handleStdOut(GitLogCmd.java:238)
	at com.smartbear.scm.cmd.impl.ScmTextCmdAdapter.handleStdOut(ScmTextCmdAdapter.java:32)
	at com.smartbear.scm.cmd.impl.DebugCommandRunner$DebugCmdWrapper.handleStdOut(DebugCommandRunner.java:181)
	at com.smartbear.scm.cmd.impl.CommandRunner$2.run(CommandRunner.java:151)
	at com.smartbear.scm.cmd.impl.CommandRunner$2.run(CommandRunner.java:148)
	at com.smartbear.scm.cmd.impl.CommandRunner$StreamHandler.call(CommandRunner.java:225)
	at com.smartbear.scm.cmd.impl.CommandRunner$StreamHandler.call(CommandRunner.java:215)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:750)

I've attached the log file from running with the --debug flag.