patch 8.0.0110

Problem:    Drop command doesn't use existing window.
Solution:   Check the window width properly. (Hirohito Higashi)

src/buffer.c

@@ -4858,8 +4858,8 @@ do_arg_all(
 	    wpnext = wp->w_next;
 	    buf = wp->w_buffer;
 	    if (buf->b_ffname == NULL
-		    || (!keep_tabs && buf->b_nwindows > 1)
+		    || (!keep_tabs && (buf->b_nwindows > 1
-		    || wp->w_width != Columns)
+			    || wp->w_width != Columns)))
 		i = opened_len;
 	    else
 	    {

src/testdir/test_tabpage.vim

@@ -65,6 +65,15 @@ function Test_tabpage()
     call assert_true(tabpagenr() == 2 && tabpagewinnr(2, '$') == 2 && tabpagewinnr(2) == 1)
     tabclose
     q
+    "
+    "
+    " Test for ":tab drop vertical-split-window" to jump test1 buffer
+    tabedit test1
+    vnew
+    tabfirst
+    tab drop test1
+    call assert_equal([2, 2, 2, 2], [tabpagenr('$'), tabpagenr(), tabpagewinnr(2, '$'), tabpagewinnr(2)])
+    1tabonly
   endif
   "
   "

src/version.c

@@ -764,6 +764,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    110,
 /**/
     109,
 /**/