From f551a7168850c8cdb2ec5c0c7cdddf42a28f26ef Mon Sep 17 00:00:00 2001
From: Junegunn Choi <junegunn.c@gmail.com>
Date: Sat, 11 Feb 2017 23:27:52 +0900
Subject: [PATCH] Add plugin to &rtp before running post-update hook with :
 prefix

Close #593
---
 plug.vim               | 4 ++++
 test/regressions.vader | 9 +++++++++
 2 files changed, 13 insertions(+)

diff --git a/plug.vim b/plug.vim
index 4d0bb77..2a61349 100644
--- a/plug.vim
+++ b/plug.vim
@@ -820,6 +820,10 @@ function! s:do(pull, force, todo)
       let type = type(spec.do)
       if type == s:TYPE.string
         if spec.do[0] == ':'
+          if !get(s:loaded, name, 0)
+            let s:loaded[name] = 1
+            call s:reorg_rtp()
+          endif
           call s:load_plugin(spec)
           try
             execute spec.do[1:]
diff --git a/test/regressions.vader b/test/regressions.vader
index 88a8a4f..3f7d0b0 100644
--- a/test/regressions.vader
+++ b/test/regressions.vader
@@ -332,3 +332,12 @@ Execute (Cursor moved to another window during post-update hook):
   AssertEqual 'empty', getline(1)
   q!
   q
+
+**********************************************************************
+Execute (#593 Add plugin to &rtp before running post-update hook with : prefix):
+  call ReloadPlug()
+  call plug#begin()
+  Plug 'junegunn/vim-pseudocl', { 'on': 'XXX', 'do': ':let g:bar = pseudocl#complete#extract_words(''a b'')' }
+  call plug#end()
+  PlugInstall!
+  AssertEqual ['a', 'b'], g:bar