diff --git a/doc/bugs/gitremotes_script_picks_up_tags_from_anywhere.mdwn b/doc/bugs/gitremotes_script_picks_up_tags_from_anywhere.mdwn
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index 000000000..96bdab9cd
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@@ -0,0 +1,11 @@
+[[!tag patch]]
+[[!template id=gitbranch branch=smcv/ready/no-tags author="[[smcv]]"]]
+
+The `gitremotes` script picks up tags from any repository, including those
+used for local .debs that were never actually present in Debian:
+
+    smcv@reptile% git tag | grep -c nmu
+    52
+
+This can be avoided with the `tagopt = --no-tags` option in .git/config;
+see <http://git.pseudorandom.co.uk/smcv/ikiwiki.git?a=shortlog;h=refs/heads/ready/no-tags>