Description of problem:
allow_resize_to_same_host parameter is quite often used and currently it is not exposed in THT. Also note that the parameter should be set on Controllers (see docs bug: https://bugzilla.redhat.com/show_bug.cgi?id=1824026)
Closing as CURRENTRELEASE. The code is present in 17.0 and 17.1, but no further QE work will be performed due to lack of capacity. This puts this RFE into the "implicitly supported" category like most Nova features that originate in the community and that appear in our OSP code without much involvement from Red Hat engineers. If a significant enough bug ends up being reported for this feature, we will re-evaluate the QE situation.