Copy description when DnD variables from Globals in resources and configuration variable panels to POUs. Also prevent making exception in case some other DropSource wouldn't provide description.
.project
.svghmithumbs
.directory
.pytest_cache
.cache
.coverage_full
syntax: regexp
^tests/.*/build$
^.idea/.*
syntax: regexp
^.*\.pyc$
syntax: regexp
^.*~$
syntax: regexp
^.*\.swp$
bug_report.*\.txt
i18n/.*.new$
revision
doc/_build
doc/locale