diff --git a/mods/DOM/watch/rotinas.lua b/mods/DOM/watch/rotinas.lua
index 99378a6d7..4d973a5bf 100644
--- a/mods/DOM/watch/rotinas.lua
+++ b/mods/DOM/watch/rotinas.lua
@@ -46,7 +46,7 @@ function watch.pega_hora(tipo)
   local tempo_m =math.floor((tempo - tempo_h)*60) --Get only minutes
 
   --Hour
-  tempo_h_12=tempo_h
+  local tempo_h_12 = tempo_h
   if tempo_h > 12 then -- Converte time to time in 12h format
     tempo_h_12 = tempo_h - 12
   end
@@ -112,7 +112,7 @@ end
 minetest.register_globalstep(function(dtime)
   local t="a" -- d to digital, a to analogic
 
-  now = watch.pega_hora(2)
+  local now = watch.pega_hora(2)
 --DOM_inspeciona_r("Hora:"..now)
   if now == "12" then now = "0" end
 
diff --git a/mods/WorldEdit/worldedit/init.lua b/mods/WorldEdit/worldedit/init.lua
index a6361b58b..91cbf4758 100644
--- a/mods/WorldEdit/worldedit/init.lua
+++ b/mods/WorldEdit/worldedit/init.lua
@@ -1,4 +1,4 @@
-worldedit = worldedit or {}
+worldedit = {}
 worldedit.version = {major=1, minor=0}
 worldedit.version_string = "1.0"
 
diff --git a/mods/WorldEdit/worldedit_commands/init.lua b/mods/WorldEdit/worldedit_commands/init.lua
index 5e75fbb71..cb086c19a 100644
--- a/mods/WorldEdit/worldedit_commands/init.lua
+++ b/mods/WorldEdit/worldedit_commands/init.lua
@@ -14,6 +14,7 @@ end
 
 dofile(minetest.get_modpath("worldedit_commands") .. "/mark.lua")
 dofile(minetest.get_modpath("worldedit_commands") .. "/safe.lua")
+safe_region = safe_region or function(callback) return callback end
 
 local get_position = function(name) --position 1 retrieval function for when not using `safe_region`
 	local pos1 = worldedit.pos1[name]
@@ -858,7 +859,7 @@ minetest.register_chatcommand("/suppress", {
 		local node = get_node(name, param)
 		local count = worldedit.suppress(worldedit.pos1[name], worldedit.pos2[name], node)
 		worldedit.player_notify(name, count .. " nodes suppressed")
-	end, check_set),
+	end, check_region),
 })
 
 minetest.register_chatcommand("/highlight", {
@@ -869,7 +870,7 @@ minetest.register_chatcommand("/highlight", {
 		local node = get_node(name, param)
 		local count = worldedit.highlight(worldedit.pos1[name], worldedit.pos2[name], node)
 		worldedit.player_notify(name, count .. " nodes highlighted")
-	end, check_set),
+	end, check_region),
 })
 
 minetest.register_chatcommand("/restore", {
diff --git a/mods/WorldEdit/worldedit_infinity/init.lua b/mods/WorldEdit/worldedit_infinity/init.lua
index be7910187..f5eda8f9d 100644
--- a/mods/WorldEdit/worldedit_infinity/init.lua
+++ b/mods/WorldEdit/worldedit_infinity/init.lua
@@ -1,4 +1,4 @@
-worldedit = worldedit or {}
+local worldedit = {}
 local minetest = minetest --local copy of global
 
 local get_pointed = function(pos, nearest, distance)
@@ -100,4 +100,4 @@ worldedit.raytrace = function(pos, dir, callback)
 			intersectz = intersectz + componentz
 		end
 	end
-end
\ No newline at end of file
+end
diff --git a/mods/default/nodes.lua b/mods/default/nodes.lua
index 6e51915b0..0aabe24a7 100644
--- a/mods/default/nodes.lua
+++ b/mods/default/nodes.lua
@@ -373,7 +373,7 @@ minetest.register_node("default:sapling", {
 		fixed = {-0.3, -0.5, -0.3, 0.3, 0.35, 0.3}
 	},
 	stack_max = 64,
-	groups = {snappy=2,dig_immediate=3,flammable=2,attached_node=1},
+	groups = {snappy=2,dig_immediate=3,flammable=2,attached_node=1,dig_by_water=1},
 	sounds = default.node_sound_defaults(),
 })
 
@@ -469,7 +469,7 @@ minetest.register_node("default:junglesapling", {
 		fixed = {-0.3, -0.5, -0.3, 0.3, 0.35, 0.3}
 	},
 	stack_max = 64,
-	groups = {snappy=2,dig_immediate=3,flammable=2,attached_node=1},
+	groups = {snappy=2,dig_immediate=3,flammable=2,attached_node=1,dig_by_water=1},
 	sounds = default.node_sound_defaults(),
 })
 
@@ -535,7 +535,7 @@ minetest.register_node("default:acaciasapling", {
 		fixed = {-0.3, -0.5, -0.3, 0.3, 0.35, 0.3}
 	},
 	stack_max = 64,
-	groups = {snappy=2,dig_immediate=3,flammable=2,attached_node=1},
+	groups = {snappy=2,dig_immediate=3,flammable=2,attached_node=1,dig_by_water=1},
 	sounds = default.node_sound_defaults(),
 })
 
@@ -600,7 +600,7 @@ minetest.register_node("default:sprucesapling", {
 		fixed = {-0.3, -0.5, -0.3, 0.3, 0.35, 0.3}
 	},
 	stack_max = 64,
-	groups = {snappy=2,dig_immediate=3,flammable=2,attached_node=1},
+	groups = {snappy=2,dig_immediate=3,flammable=2,attached_node=1,dig_by_water=1},
 	sounds = default.node_sound_defaults(),
 })