CMake remote deploy fails when install directory starts with . (dot)

cmake_minimum_required(VERSION 3.5)

project(qtdeploytest LANGUAGES CXX)

set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

add_executable(qtdeploytest main.cpp)

install(TARGETS qtdeploytest DESTINATION .bin)

Without '.' before 'bin' it will work fine, but if dot is at the beginning, then remote deploy will fail (no files will be copied) and error message (in attachment) will appear in a separate window.

This used to work fine in QtCreator 4.9, but I couldn't find out why it happens, hence it took so long to report this.