backslash presented for translation in translatewiki.net when message holds trailing spaces

Mantis messages presented in translatewiki.net recieve an additional backslash which is not present in the original ENglish string when this one has trailing blanks. The back slash is not translated. Please correct the EN string or adapt the output format. Concerned messages:

Backlog should not be set if status is : \
from https://translatewiki.net/w/i.php?title=Special:Translate&showMessage=1210%3ACodev-82c2b7-Backlog_should_not_be_set_if_s&group=codev

Backlog should be 0 (not \
from https://translatewiki.net/w/i.php?title=Special:Translate&showMessage=1210%3ACodev-2c29d3-Backlog_should_be_0_%28not_%5C&group=codev

Status can't be : \
https://translatewiki.net/w/i.php?title=Special:Translate&showMessage=1210%3ACodev-b2ec71-Status_can%27t_be_%3A_%5C&group=codev

There should be no timetracks on "new" issues \
https://translatewiki.net/w/i.php?title=Special:Translate&showMessage=1210%3ACodev-21d9a7-There_should_be_no_timetracks&group=codev