fix: always return item in resolve

closes #211

Author: Saghen

lua/blink/cmp/sources/lib/init.lua

@@ -152,7 +152,7 @@ function sources.resolve(item)
       break
     end
   end
-  if item_source == nil then return async.task.new(function(resolve) resolve() end) end
+  if item_source == nil then return async.task.new(function(resolve) resolve(item) end) end
 
   return item_source:resolve(item):catch(function(err) vim.print('failed to resolve item with error: ' .. err) end)
 end

lua/blink/cmp/sources/lib/provider/init.lua

@@ -118,7 +118,7 @@ function source:resolve(item)
   local tasks = self.resolve_tasks
   if tasks[item] == nil or tasks[item].status == async.STATUS.CANCELLED then
     tasks[item] = async.task.new(function(resolve)
-      if self.module.resolve == nil then return resolve(nil) end
+      if self.module.resolve == nil then return resolve(item) end
       return self.module:resolve(item, function(resolved_item)
         -- use the item's existing documentation and detail if the LSP didn't return it
         -- TODO: do we need this? this would be for java but never checked if it's needed