Merge branch 'bugfix/narrowingerror' into 'master'

Andreas Dednerrequested to merge
cherry-pick-87441524 into releases/2.9

some compilers define char as being unsigned and then char(-128) leads to an

See merge request !161 (merged)

(cherry picked from commit 87441524)

a3be17ec some compilers define char as being unsigned and then char(-128) leads to an

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