Patch 8.1.1046
Problem:    the "secure" variable is used inconsistently. (Justin M. Keyes)
Solution:   Set it to one instead of incrementing.
Files:      src/buffer.c, src/option.c


*** ../vim-8.1.1045/src/buffer.c        2019-03-02 10:13:36.788974890 +0100
--- src/buffer.c        2019-03-24 13:48:30.222662964 +0100
***************
*** 5498,5504 ****
                current_sctx.sc_lnum = 0;
  #endif
                // Make sure no risky things are executed as a side effect.
!               ++secure;
  
                retval = do_set(s, OPT_MODELINE | OPT_LOCAL | flags);
  
--- 5498,5504 ----
                current_sctx.sc_lnum = 0;
  #endif
                // Make sure no risky things are executed as a side effect.
!               secure = 1;
  
                retval = do_set(s, OPT_MODELINE | OPT_LOCAL | flags);
  
*** ../vim-8.1.1045/src/option.c        2019-03-21 21:45:30.879282125 +0100
--- src/option.c        2019-03-24 13:50:57.149725126 +0100
***************
*** 5151,5163 ****
                            // effects in secure mode.  Also when the value was
                            // set with the P_INSECURE flag and is not
                            // completely replaced.
!                           if (secure
  #ifdef HAVE_SANDBOX
!                                   || sandbox != 0
  #endif
!                                   || (opt_flags & OPT_MODELINE)
!                                   || (!value_is_replaced && (*p & 
P_INSECURE)))
!                               ++secure;
  
                            // Handle side effects, and set the global value
                            // for ":set" on local options. Note: when setting
--- 5151,5162 ----
                            // effects in secure mode.  Also when the value was
                            // set with the P_INSECURE flag and is not
                            // completely replaced.
!                           if ((opt_flags & OPT_MODELINE)
  #ifdef HAVE_SANDBOX
!                                 || sandbox != 0
  #endif
!                                 || (!value_is_replaced && (*p & P_INSECURE)))
!                               secure = 1;
  
                            // Handle side effects, and set the global value
                            // for ":set" on local options. Note: when setting
*** ../vim-8.1.1045/src/version.c       2019-03-23 17:41:56.217138373 +0100
--- src/version.c       2019-03-24 13:53:30.596743493 +0100
***************
*** 777,778 ****
--- 777,780 ----
  {   /* Add new patch number below this line */
+ /**/
+     1046,
  /**/

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