Fixed constness fail in PropertyManager::set_range().

7 jobs for propmgr in 22 minutes and 33 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #9854
Linux
clang-c++11

00:22:32

passed #9856
Linux
clang-c++98

00:17:04

passed #9859
Linux
cppcheck

00:00:23

passed #9853
Linux
gcc-c++11

00:05:09

passed #9855
Linux
gcc-c++98

00:05:21

passed #9857
Apple
macos-c++11

00:16:29

passed #9858
Apple
macos-c++98

00:15:21