ITS#6423 slapo-rwm and dynlist overlay

[masarati@aero.polimi.it]

The problem is that back-relay presents slapo-rwm(3) an entry with both
REP_ENTRY_MODIFIABLE and REP_ENTRY_MUSTRELEASE flags set.  As a
consequence, the entry is released (namely, freed) before it is returned
by the frontend.  As far as I understand, the two flags should be mutually
exclusive.  As soon as one entry is marked as REP_ENTRY_MODIFIABLE, it is
supposed to be a copy of an entry that may need to be released, or an
entry created from scratch and thus not stored anywhere.  I have a quick
fix to your problem, that consists in ignoring REP_ENTRY_MUSTRELEASE when
REP_ENTRY_MODIFIABLE is also set.  However, a better fix would consist in
tracking where the issue occurs.  Unless I track it, I'll commit the quick
fix.

p.