[public-1.13.5] MapHack: $modify ignores multiple keyfield filters

[dysphie]

Maphack's $modify feature matches entities that don't pass all match filters

Repro steps:

1. Map with this entity:

   entity
   {
   "id" "33"
   "classname" "game_text"
   "channel" "1"
   "color" "0 255 0"
   "color2" "240 110 0"
   "fadein" "1.5"
   "fadeout" "0.5"
   "fxtime" "0.25"
   "holdtime" "1.2"
   "message" "Good"
   "targetname" "text"
   "x" "-1"
   "y" "-1"
   "origin" "128 128 -24"
   editor
   {
       "color" "220 30 220"
       "visgroupshown" "1"
       "visgroupautoshown" "1"
       "logicalpos" "[0 1500]"
   }
   }

2. This maphack;

   "Maphack"
   {
   "pre_entities"
   {
       $modify
       {
           "match"
           {
               "classname" "game_text"
               "targetname" "nevermatch" // shouldn't find any entity
           }
           "replace"
           {
               "message"   "Bad"
           }
       }
   }
   }

ent_fire text display will show the entity has been edited despite not matching all the fields

[felis-catus]

Fixed in src-r7562.