message: Note preexisting bug in display of fee calculation in coin control
diff: @@ -45,6 +45,15 @@ setting or through the `-upnp` option, as since the last UPnP vulnerability
  If you use this option, it is recommended to upgrade to this version as soon as
  possible.
  +Known Bugs
  +==========
  +
  +Since 0.14.0 the approximate transaction fee shown in Bitcoin-Qt when using coin
  +control and smart fee estimation does not reflect any change in target from the
  +smart fee slider. It will only present an approximate fee calculated using the
  +default target. The fee calculated using the correct target is still applied to
  +the transaction and shown in the final send confirmation dialog.
  +
  0.14.2 Change log
  =================
  