[pob2-port] Fix crash when importing some builds to party tab (#9860)

* Apply changes from PathOfBuildingCommunity/PathOfBuilding-PoE2#1872

* Remove test

---------

Co-authored-by: unrealdreamz <unrealdreamz@users.noreply.github.com>
Co-authored-by: LocalIdentity <localidentity2@gmail.com>

Author: 3 people

src/Classes/PartyTab.lua

@@ -759,9 +759,12 @@ function PartyTabClass:ParseBuffs(list, buf, buffType, label)
 			for line in buf:gmatch("([^\n]*)\n?") do
 				if line:find("=") then
 					-- label is output for this type, as a special case
-					if line:match("%.") then
-						local k1, k2, v = line:match("([%w ]-%w+)%.([%w ]-%w+)=(.+)")
-						label[k1] = {[k2] = tonumber(v)}
+					local k1, k2, v = line:match("^([%w ]-%w+)%.([%w ]-%w+)=(.+)$")
+					if k1 then
+						if type(label[k1]) ~= "table" then
+							label[k1] = { }
+						end
+						label[k1][k2] = tonumber(v)
 					elseif line:match("|") then
 						local k, tags, v = line:match("([%w ]-%w+)|(.+)=(.+)")
 						v = tonumber(v)