Multiselect field not displaying properly in detail(single listing) page

Hi,

There is a bug when a Multi-select field is displayed in detail(single listing) page.

We followed the following guidelines for this field :

If using OPTGROUP tag to grouping options, use “{optgroup}OPTGROUP-LABEL|OPTION-1,OPTION-2{/optgroup}

but when it is displayed in detail(single listing) page, {optgroup} gets appended to it.

Also can be remove the group title followed by the pipe symbol(|) of each options when displaying it.

Option Value which we used:

{optgroup}Africa|East Africa/East Africa,Middle Africa/Middle Africa,North Africa/North Africa,West Africa/West Africa,South Africa/South Africa,Sub-Saharan Africa/Sub-Saharan Africa{/optgroup},{optgroup}Asia|East Asia/East Asia,Central Asia/Central Asia,South Asia/South Asia,South-East Asia/South-East Asia,West Asia/West Asia{/optgroup},{optgroup}Europe|East Europe/East Europe,West Europe/West Europe,South Europe/South Europe,North Europe/North Europe{/optgroup},{optgroup}Americas|Latin America/Latin America,Caribbean/Caribbean,Central America/Central America,South America/South America,North America/North America{/optgroup},{optgroup}Oceania|Australia & New Zealand/Australia & New Zealand,Melanesia/Melanesia,Micronesia/Micronesia,Polynesia/Polynesia{/optgroup}