Fixing farmbot watertank (#5709)

Apparently this was still causing some trouble. basically without qdel the tank before moving new and assigning we will have a duplicate.

Fixes farmbot assemblies having duplicated watertank after they are finished assembling.

code/modules/mob/living/bot/farmbot.dm

@@ -348,6 +348,7 @@
 		user << "You complete the Farmbot! Beep boop."
 		var/mob/living/bot/farmbot/S = new /mob/living/bot/farmbot(get_turf(src))
 		for(var/obj/structure/reagent_dispensers/watertank/wTank in contents)
+			qdel(S.tank)
 			wTank.forceMove(S)
 			S.tank = wTank
 		S.name = created_name

html/changelogs/Sidnorman-bot2.yml

@@ -0,0 +1,37 @@
+################################
+# Example Changelog File
+#
+# Note: This file, and files beginning with ".", and files that don't end in ".yml" will not be read. If you change this file, you will look really dumb.
+#
+# Your changelog will be merged with a master changelog. (New stuff added only, and only on the date entry for the day it was merged.)
+# When it is, any changes listed below will disappear.
+#
+# Valid Prefixes:
+#   bugfix
+#   wip (For works in progress)
+#   tweak
+#   soundadd
+#   sounddel
+#   rscadd (general adding of nice things)
+#   rscdel (general deleting of nice things)
+#   imageadd
+#   imagedel
+#   maptweak
+#   spellcheck (typo fixes)
+#   experiment
+#   balance
+#################################
+
+# Your name.
+author: PoZe
+
+# Optional: Remove this file after generating master changelog.  Useful for PR changelogs that won't get used again.
+delete-after: True
+
+# Any changes you've made.  See valid prefix list above.
+# INDENT WITH TWO SPACES.  NOT TABS.  SPACES.
+# SCREW THIS UP AND IT WON'T WORK.
+# Also, all entries are changed into a single [] after a master changelog generation. Just remove the brackets when you add new entries.
+# Please surround your changes in  double quotes ("), as certain characters otherwise screws up compiling. The quotes will not show up in the changelog.
+changes:
+  - bugfix: "Farmbot can finally be refilled properly."