doc/bugs/protocol_mismatch_after_interrupt.mdwn

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+### Please describe the problem.
+
+git annex now fails to transfer a fail with: `protocol version mismatch -- is your shell clean?`
+
+### What steps will reproduce the problem?
+
+start a transfer, then interrupt it.
+
+### What version of git-annex are you using? On what operating system?
+
+on my side: 5.20140306~bpo70 on debian wheezy amd64
+
+on the other side: 4.20130815 on ubuntu saucy i386
+
+### Please provide any additional information below.
+
+[[!format sh """
+anarcat@angela:video$ git annex copy --to t films/foo.mkv
+copy films/foo.mkv (checking t...) (to t...)
+protocol version mismatch -- is your shell clean?
+(see the rsync man page for an explanation)
+rsync error: protocol incompatibility (code 2) at compat.c(174) [sender=3.0.9]
+
+  rsync failed -- run git annex again to resume file transfer
+failed
+git-annex: copy: 1 failed
+"""]]
+
+-- [[anarcat]]