diff --git a/doc/bugs/file_extension_not_used_for_URIs_from_special_remotes.mdwn b/doc/bugs/file_extension_not_used_for_URIs_from_special_remotes.mdwn
deleted file mode 100644
index 78e80fe1ae..0000000000
--- a/doc/bugs/file_extension_not_used_for_URIs_from_special_remotes.mdwn
+++ /dev/null
@@ -1,14 +0,0 @@
-### Please describe the problem.
-If a special remote has URIs that do not end in a file extension, then symlinks to annexed files fetched from that remote will have null extensions, even if
-CHECKURL returned a filename with an extension.
-git annex --verbose --debug addurl dx://file-BXF0vYQ0QyBF509G9J12g927
-creates the symlink
- contaminants.fasta -> ../.git/annex/objects/ZF/Gj/SHA256E-s18932--c1ed24754e8b7736e275359a34b312d2d6ce2efc1d236061b04d27a9e8147c1a/SHA256E-s18932--c1ed24754e8b7736e275359a34b312d2d6ce2efc1d236061b04d27a9e8147c1a
-
-which doesn't have an extension even though 
-
-[2018-09-18 23:49:54.875801] git-annex-remote-dnanexus[1] --> CHECKURL-CONTENTS 18932 contaminants.fasta
-addurl dx://file-BXF0vYQ0QyBF509G9J12g927 (from dnanexus) (to contaminants.fasta) [2018-09-18 23:49:54.876016] read: git ["--version"]
-[2018-09-18 23:49:54.876825] process done ExitSuccess
-
-and the SHA256E backend is used.