Yes, you can. The problem you ask about was solved in Subversion 1.8.
Beginning with SVN 1.8, --reintegrate option is deprecated and reintegrate merges are now performed automatically (or automagically :) ). See Subversion 1.8 Release Notes and read updated SVNBook 1.8 | Reintegrating a branch chapter:
If you choose not to delete your branch after reintegrating it to the
trunk you may continue to perform sync merges from the trunk and then
reintegrate the branch again. If you do this, only the changes made on
your branch after the first reintegrate are merged to the trunk.
...
Only Subversion 1.8 supports this reuse of a feature branch. Earlier
versions require some special handling before a feature branch can be
reintegrated more than once. See the earlier version of this chapter
for more information:
http://svnbook.red-bean.com/en/1.7/svn.branchmerge.basicmerging.html#svn.branchemerge.basicmerging.reintegrate
IMPORTANT: You should upgrade your Subversion client and server if you still use Subversion 1.7 or older. The current and best version of SVN is 1.9 as of year 2016. There is no real reason to be using very old Subversion releases such as 1.5, 1.6 or even 1.7. There were numerous improvements on client and server side since version 1.6!
