Fix bug with implementation

Author: kdheepak

lua/source/lsp.lua

@@ -13,7 +13,13 @@ end
 local function get_completion_word(item, prefix)
   if item.textEdit ~= nil and item.textEdit ~= vim.NIL
     and item.textEdit.newText ~= nil and (item.insertTextFormat ~= 2 or vim.fn.exists('g:loaded_vsnip_integ')) then
-    return prefix .. item.textEdit.newText
+    local start_range = item.textEdit.range["start"]
+    local end_range = item.textEdit.range["end"]
+    if start_range.line == end_range.line and start_range.character == end_range.character then
+        return prefix .. item.textEdit.newText
+    else
+        return item.textEdit.newText
+    end
   elseif item.insertText ~= nil and item.insertText ~= vim.NIL then
     return item.insertText
   end