'osc sr -r N ...' does not work correctly (specifying a release).

Compare

# osc sr -r 1227 openSUSE.org:system:install:head installation-images
SUSE:SLE-15-SP1:Update
https://build.suse.de/request/show/208898 (wrong)

with (copying revision 1227 to another project and submitting that)

https://build.suse.de/request/show/208900 (ok)

The bad part is that osc in both cases shows the same diff - see the
build.suse.de pages but the actual submission is different - see the changelog
diff. Despite '-r' the latest version is submitted.

Bug ID	1160446
Summary	osc (or obs) creates wrong submit request
Classification	Internal Novell Products
Product	openSUSE Build Service
Version	master
Hardware	Other
OS	Other
Status	NEW
Severity	Normal
Priority	P5 - None
Component	osc
Assignee	adrian@suse.com
Reporter	snwint@suse.com
QA Contact	adrian@suse.com
Found By	---
Blocker	---