RT crashes when pasting nothing, fixes #3922

rtengine/procparams.cc

@@ -8473,25 +8473,20 @@ PartialProfile::PartialProfile(bool createInstance, bool paramsEditedValue)
         pparams = nullptr;
         pedited = nullptr;
     }
-    ownsPparams = ownsPedited = true;
 }
 
 PartialProfile::PartialProfile(ProcParams* pp, ParamsEdited* pe, bool fullCopy)
 {
     if (fullCopy && pp) {
         pparams = new ProcParams(*pp);
-        ownsPparams = true;
     } else {
         pparams = pp;
-        ownsPparams = false;
     }
 
     if (fullCopy && pe) {
         pedited = new ParamsEdited(*pe);
-        ownsPedited = true;
     } else {
         pedited = pe;
-        ownsPedited = false;
     }
 }
 
@@ -8508,15 +8503,6 @@ PartialProfile::PartialProfile(const ProcParams* pp, const ParamsEdited* pe)
     } else {
         pedited = nullptr;
     }
-    ownsPparams = ownsPedited = true;
-}
-
-PartialProfile::~PartialProfile()
-{
-    if(ownsPparams)
-        delete pparams;
-    if(ownsPedited)
-        delete pedited;
 }
 
 int PartialProfile::load (const Glib::ustring &fName)