patch 8.2.2058: using mkview/loadview changes the jumplist

Problem:    Using mkview/loadview changes the jumplist.
Solution:   Use ":keepjumps".  Don't let ":badd" or ":balt" change the
            jumplist. (closes #7371)

src/ex_docmd.c

@@ -6638,7 +6638,8 @@ do_exedit(
 	else if (eap->cmdidx == CMD_enew)
 	    readonlymode = FALSE;   // 'readonly' doesn't make sense in an
 				    // empty buffer
-	setpcmark();
+	if (eap->cmdidx != CMD_balt && eap->cmdidx != CMD_badd)
+	    setpcmark();
 	if (do_ecmd(0, (eap->cmdidx == CMD_enew ? NULL : eap->arg),
 		    NULL, eap,
 		    // ":edit" goes to first line if Vi compatible

src/session.c

@@ -460,9 +460,9 @@ put_view(
 		    (long)wp->w_height / 2, (long)wp->w_height) < 0
 		|| put_eol(fd) == FAIL
 		|| put_line(fd, "if s:l < 1 | let s:l = 1 | endif") == FAIL
-		|| put_line(fd, "exe s:l") == FAIL
+		|| put_line(fd, "keepjumps exe s:l") == FAIL
 		|| put_line(fd, "normal! zt") == FAIL
-		|| fprintf(fd, "%ld", (long)wp->w_cursor.lnum) < 0
+		|| fprintf(fd, "keepjumps %ld", (long)wp->w_cursor.lnum) < 0
 		|| put_eol(fd) == FAIL)
 	    return FAIL;
 	// Restore the cursor column and left offset when not wrapping.

src/testdir/test_mksession.vim

@@ -586,6 +586,53 @@ func Test_mkview_no_file_name()
   %bwipe
 endfunc
 
+func Test_mkview_loadview_jumplist()
+  set viewdir=Xviewdir
+  au BufWinLeave * silent mkview
+  au BufWinEnter * silent loadview
+
+  edit Xfile1
+  call setline(1, ['a', 'bbbbbbb', 'c'])
+  normal j3l
+  call assert_equal([2, 4], getcurpos()[1:2])
+  write
+
+  edit Xfile2
+  call setline(1, ['d', 'eeeeeee', 'f'])
+  normal j5l
+  call assert_equal([2, 6], getcurpos()[1:2])
+  write
+
+  edit Xfile3
+  call setline(1, ['g', 'h', 'iiiii'])
+  normal jj3l
+  call assert_equal([3, 4], getcurpos()[1:2])
+  write
+
+  edit Xfile1
+  call assert_equal([2, 4], getcurpos()[1:2])
+  edit Xfile2
+  call assert_equal([2, 6], getcurpos()[1:2])
+  edit Xfile3
+  call assert_equal([3, 4], getcurpos()[1:2])
+
+  exe "normal \<C-O>"
+  call assert_equal('Xfile2', expand('%'))
+  call assert_equal([2, 6], getcurpos()[1:2])
+  exe "normal \<C-O>"
+  call assert_equal('Xfile1', expand('%'))
+  call assert_equal([2, 4], getcurpos()[1:2])
+
+  au! BufWinLeave
+  au! BufWinEnter
+  bwipe!
+  call delete('Xviewdir', 'rf')
+  call delete('Xfile1')
+  call delete('Xfile2')
+  call delete('Xfile3')
+  set viewdir&
+endfunc
+
 " A clean session (one empty buffer, one window, and one tab) should not
 " set any error messages when sourced because no commands should fail.
 func Test_mksession_no_errmsg()
@@ -872,4 +919,27 @@ func Test_scrolloff()
   set sessionoptions&
 endfunc
 
+func Test_altfile()
+  edit Xone
+  split Xtwo
+  edit Xtwoalt
+  edit #
+  wincmd w
+  edit Xonealt
+  edit #
+  mksession! Xtest_altfile
+  only
+  bwipe Xonealt
+  bwipe Xtwoalt
+  bwipe!
+  source Xtest_altfile
+  call assert_equal('Xone', bufname())
+  call assert_equal('Xonealt', bufname('#'))
+  wincmd w
+  call assert_equal('Xtwo', bufname())
+  call assert_equal('Xtwoalt', bufname('#'))
+  only
+  bwipe!
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2058,
 /**/
     2057,
 /**/