Fixes #3351 (V1). TabIndex with the same setter value but with wrong index return without set the correct value.#3352

tig merged 2 commits intogui-cs:developgui-cs/Terminal.Gui:developfrom

BDisp:v1_tabindex-fix_3351BDisp/Terminal.Gui:v1_tabindex-fix_3351Copy head branch name to clipboard