The previous version is formally older than 1.4:
$ if dpkg --compare-versions 1.4-0~u14.04+mos1 lt 1.4; then echo BAD; fi
BAD
Adjust the revision in order to avoid breaking packages depending on
python-django-compressor (>= 1.4)
blueprint separate-mos-from-linux
Change-Id: Ica76892fe7a5dab70aa41bb3a5221ee90d51b92c
+python-django-compressor (1.4-0u~u14.04+mos1) mos6.1; urgency=medium
+
+ * Adjust the package revision in order to avoid breaking packages
+ depending on python-django-compressor (>= 1.4)
+
+ -- Vasyl Saienko <vsaienko@mirantis.com> Wed, 15 Apr 2015 17:35:32 +0200
+
python-django-compressor (1.4-0~u14.04+mos1) mos6.1; urgency=medium
* Adjust the package revision according to the versioning policy