Launchpad does not import Scilab translation contexts

Scilab templates contain the context hints as follows ( http://bazaar.launchpad.net/~vcs-imports/scilab/master/view/head:/scilab/modules/scicos_blocks/locales/scicos_blocks.pot ):

#
# File: macros/Sources/tkscaleblk.sci, line: 51
msgid "&Edit"
msgstr ""

Such a comment is visible in off-line translation tools (e.g. Lokalize), but Launchpad for some reason does not show it:

https://translations.launchpad.net/scilab/trunk/+pots/scicos-blocks/uk/+translate

(No line with something like "Located in macros/Sources/tkscaleblk.sci, line: 51" or other hint)

Context can be very helpful for translation.

Thanks in advance for the hints about how to fix this.