Replacing should occur once (and not twice) when sending files with jump client

Problem: For example you send files via jump and want to add a prefix on the target files to get

Source: test.txt -> Target: a_test.txt

Parameter:

 
operation=copytointernet
replacing=.*
replacement=a_[filename:]
jump_command=/opt/sos-berlin.com/jade/client/jade.sh
...

then the substitution occurs twice, so that the result is

Source: test.txt -> Target: a_a_test.txt