User Portrait JSP Tag ignores size attribute

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1

In JSP, it is possible to render a user portrait using this tag:
<liferay-user:user-portrait size="xl" user="<%= user %>"/>

However, that size attribute is effectively ignored by improper concatenation in the related UserPortraitTag.java:

sb.append("<span class=\\"rounded-circle sticker sticker-primary");

if (Validator.isNotNull(size)) {
	sb.append(\_getSizeCssClass(size));
}

Because that size part is not separated by a space, it is merged with preceding part, thus creating non-existing class, e.g.: sticker-primarysticker-xl, so the default size is used instead.