patch 8.1.1242: no cmdline redraw when tabpages have different 'cmdheight'
Problem: No cmdline redraw when tabpages have different 'cmdheight'.
Solution: redraw the command line when 'cmdheight' changes when switching
tabpages. (closes #4321)
diff --git a/src/testdir/dumps/Test_tabpage_cmdheight.dump b/src/testdir/dumps/Test_tabpage_cmdheight.dump
new file mode 100644
index 0000000..74ac734
--- /dev/null
+++ b/src/testdir/dumps/Test_tabpage_cmdheight.dump
@@ -0,0 +1,20 @@
+| +8#0000001#e0e0e08|[|N|o| |N|a|m|e|]| | +2#0000000#ffffff0|[|N|o| |N|a|m|e|]| | +1&&@51|X+8#0000001#e0e0e08
+> +0#0000000#ffffff0@74
+|~+0#4040ff13&| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|[+3#0000000&|N|o| |N|a|m|e|]| @47|0|,|0|-|1| @9|A|l@1
+| +0&&@74
+@75
+@75