db adaptors: nil internal variable when closing

This prevents subsequent spurious flushes from bombing out because of
closed databases.

2 files changed, 2 insertions, 0 deletions

diff --git a/lib/rbot/registry/bdb.rb b/lib/rbot/registry/bdb.rb
index 2403ec0e..b865770f 100644
--- a/lib/rbot/registry/bdb.rb
+++ b/lib/rbot/registry/bdb.rb
@@ -377,6 +377,7 @@ class Bot
       # debug "closing registry #{registry}"
       return if !@registry
       registry.close
+      @registry = nil
     end
 
     # convert value to string form for storing in the registry
diff --git a/lib/rbot/registry/tc.rb b/lib/rbot/registry/tc.rb
index 8ffd3e40..06013f8f 100644
--- a/lib/rbot/registry/tc.rb
+++ b/lib/rbot/registry/tc.rb
@@ -376,6 +376,7 @@ class Bot
       # debug "closing registry #{registry}"
       return if !@registry
       registry.close
+      @registry = nil
     end
 
     # convert value to string form for storing in the registry