patch 9.0.0714: with 'nowrap' two virtual text below not displayed correctly

Problem:    With 'nowrap' two virtual text below not displayed correctly.
Solution:   Set text_prop_follows before continuing.  Correct for number
            column. (closes #11333)

src/drawline.c

@@ -578,7 +578,7 @@ textprop_size_after_trunc(
 	int	*n_used_ptr)
 {
     int	space = (flags & (TP_FLAG_ALIGN_BELOW | TP_FLAG_ALIGN_ABOVE))
-							 ? wp->w_width : added;
+				       ? wp->w_width - win_col_off(wp) : added;
     int len = (int)STRLEN(text);
     int strsize = 0;
     int n_used;
@@ -634,6 +634,8 @@ text_prop_position(
     int	    strsize = vim_strsize(*p_extra);
     int	    cells = wrap ? strsize : textprop_size_after_trunc(wp,
 			     tp->tp_flags, before, padding, *p_extra, &n_used);
+    int	    cont_on_next_line = below && col_with_padding > win_col_off(wp)
+							      && !wp->w_p_wrap;
 
     if (wrap || right || above || below || padding > 0 || n_used < *n_extra)
     {
@@ -736,7 +738,11 @@ text_prop_position(
 		*n_attr = mb_charlen(*p_extra);
 		if (above)
 		    *n_attr -= padding + after;
-		*n_attr_skip = before + padding + skip_add;
+
+		// Add "skip_add" when starting a new line or wrapping,
+		// n_attr_skip will then be decremented in the number column.
+		*n_attr_skip = before + padding
+			    + (cont_on_next_line || before > 0 ? skip_add : 0);
 	    }
 	}
     }
@@ -1917,6 +1923,7 @@ win_line(
 							   -text_prop_id - 1];
 			int	    above = (tp->tp_flags
 							& TP_FLAG_ALIGN_ABOVE);
+			int	    bail_out = FALSE;
 
 			// reset the ID in the copy to avoid it being used
 			// again
@@ -2003,7 +2010,7 @@ win_line(
 					break;
 				    }
 				    win_line_start(wp, &wlv, TRUE);
-				    continue;
+				    bail_out = TRUE;
 				}
 			    }
 			}
@@ -2017,6 +2024,10 @@ win_line(
 			    && (wp->w_p_wrap
 				   || (text_props[other_tpi].tp_flags
 			       & (TP_FLAG_ALIGN_BELOW | TP_FLAG_ALIGN_RIGHT)));
+
+			if (bail_out)
+			    // starting a new line for "below"
+			    continue;
 		    }
 		}
 		else if (text_prop_next < text_prop_count

src/testdir/dumps/Test_text_below_nowrap_1.dump

@@ -0,0 +1,8 @@
+| +0#af5f00255#ffffff0@1|1| |f+0#0000000&|i|r|s|t| |l|i|n|e| @45
+| +0#af5f00255&@3| +0#0000000&@1|o+0&#ffd7ff255|n|e| |b|e|l|o|w| |t|h|e| |t|e|x|t| |o|n|e| |b|e|l|o|w| |t|h|e| |t|e|x|t| |o|n|e| |b|e|l|o|w| |t|h|e| |t|e
+| +0#af5f00255#ffffff0@3| +0#0000000&@1|t+0&#ffd7ff255|w|o| |b|e|l|o|w| |t|h|e| |t|e|x|t| |t|w|o| |b|e|l|o|w| |t|h|e| |t|e|x|t| |t|w|o| |b|e|l|o|w| |t|h|e| |t|e
+| +0#af5f00255#ffffff0@1|2| |s+0#0000000&|e|c|o|n|d| >l|i|n|e| |s|e|c|o|n|d| |l|i|n|e| |s|e|c|o|n|d| |l|i|n|e| |s|e|c|o|n|d| |l|i|n|e| |s|e|c|o|n|d| |l
+| +0#af5f00255&@1|3| |t+0#0000000&|h|i|r|d| @50
+| +0#af5f00255&@1|4| |f+0#0000000&|o|u|r|t|h| @49
+|~+0#4040ff13&| @58
+| +0#0000000&@41|2|,|8| @10|A|l@1| 

src/testdir/test_textprop.vim

@@ -3241,6 +3241,35 @@ func Test_text_after_nowrap()
   call StopVimInTerminal(buf)
 endfunc
 
+func Test_text_below_nowrap()
+  CheckRunVimInTerminal
+
+  let lines =<< trim END
+      vim9script
+      setline(1, ['first line', 'second line '->repeat(50), 'third', 'fourth'])
+      set nowrap number
+      prop_type_add('theprop', {highlight: 'DiffChange'})
+      prop_add(1, 0, {
+          type: 'theprop',
+          text: 'one below the text '->repeat(5),
+          text_align: 'below',
+          text_padding_left: 2,
+      })
+      prop_add(1, 0, {
+          type: 'theprop',
+          text: 'two below the text '->repeat(5),
+          text_align: 'below',
+          text_padding_left: 2,
+      })
+      normal 2Gw
+  END
+  call writefile(lines, 'XTextBelowNowrap', 'D')
+  let buf = RunVimInTerminal('-S XTextBelowNowrap', #{rows: 8, cols: 60})
+  call VerifyScreenDump(buf, 'Test_text_below_nowrap_1', {})
+
+  call StopVimInTerminal(buf)
+endfunc
+
 func Test_insert_text_change_arg()
   CheckRunVimInTerminal
 

src/version.c

@@ -699,6 +699,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    714,
 /**/
     713,
 /**/