def initialize
super
- return if @registry.nil? or @registry.length < 1
+ return if @registry.length < 1
debug 'Checking registry for old-formatted notes...'
n = 0
@registry.dup.each_key do |key|
unless key == key.downcase
- @registry[key.downcase] = @registry[key] + @registry[key.downcase]
+ @registry[key.downcase] = @registry[key] + (@registry[key.downcase] || [])
@registry.delete key
n += 1
end