A root path differing only by a trailing separator now normalises to
the same value on create and update, so PUT no longer treats a no-op
edit as a relocation whose destinations conflict with their own
sources.
A failed root-path move now removes the new root directory it created
for that move, but only when it created it — a directory that already
existed at the destination is left alone, matching the retry
guarantee relocate.rs documents.
Refs #243
Miguel Palhas
6fa88b8f1f