+This is safe to run while normal inbox writing tools
+(L<public-inbox-mda(1)>, L<public-inbox-watch(1)>,
+L<public-inbox-learn(1)>) are active.
+
+Running this in parallel with L<public-inbox-xcpdb(1)> or
+C<"public-inbox-index --reindex"> can lead to errors or
+edited data remaining indexed.
+
+Incremental L<public-inbox-index(1)> (without C<--reindex>)
+is fine.
+
+Keep in mind this is a last resort, as it will be disruptive
+to anyone using L<git(1)> to mirror the inbox being edited.
+