v0.2.50..v0.2.51 changeset map3.osm

diff --git a/test-files/cmd/slow/ChangesetDeriveCmdTest/map3.osm b/test-files/cmd/slow/ChangesetDeriveCmdTest/map3.osm
new file mode 100644
index 0000000..9c70aa0
--- /dev/null
+++ b/test-files/cmd/slow/ChangesetDeriveCmdTest/map3.osm
@@ -0,0 +1,94 @@
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