Calling back r.mapcalc statement in command console - parsing error

[pvanbosgeo]

First run a mapcalc statement in the command console, e.g.,

r.mapcalc "A = 2*B"

Then use the 'up arrow' to call back the latest function.

It shows the r.mapcalc statement without quotes:

r.mapcalc A = 2*B

Which will not run, giving the error message 'Unable to parse command 'r.mapcalc = 2*B'