VERSION file content has been changed in "11.1O" instead of "11.10".
This file is used to build the version number used in the RPM packages. Thankfully this situation is quite harmless:
$ rpmdev-vercmp tuleap-11.10-1.el7.noarch tuleap-11.1O-1.el7.noarch
tuleap-11.10-1.el7.noarch > tuleap-11.1O-1.el7.noarch
Anyway the situation should be fixed: it was not expected and I'm really not eager to discover if all of our tools (or the ones used by users) support it.