A bug in BDOS function 10 (C_READSTR) - Buffered console input (in A-Hdrive image)

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The function works OK when I run CP/M program as „parameter in the command line” — but when trying to use it in --nobdos mode (without BDOS emulation, using disk image called A-Hdrive) it always seems to emit superfluous, unnecessary CR character after accepting any input, therefore moving the cursor to beginning of input line. Which is not what I expect, and which spoils the input line.