Comment 1 for bug 1678494

This is quite easy to reproduce.

> $ cat <<EOF > test.db
> record(calc, "cnt") {
> field(INPA, "cnt")
> field(CALC, "A+1")
> field(SCAN, "1 second")
> }
> EOF
> $ ./bin/linux-x86_64-debug/softIoc -d test.db

then in another shell run

> $ caget -# 1 -d CTRL_CHAR cnt.INPA