OO-4129: overwrite CSS rule for portrait in member list

src/main/java/org/olat/commons/memberlist/ui/_content/memberList.html

@@ -3,7 +3,7 @@
 		<div class="clearfix">
 			<div class="o_portrait">
 				#if($member.isPortraitAvailable())
-					<img src="$r.staticLink("images/transparent.gif")" class="$member.getPortraitCssClass()" style="background-image: url('$avatarBaseURL/${member.getKey()}/portrait.jpg')" alt="$r.escapeHtml("$member.getFullName()")" />
+					<img src="$r.staticLink("images/transparent.gif")" class="$member.getPortraitCssClass()" style="background-image: url('$avatarBaseURL/${member.getKey()}/portrait.jpg') !important;" alt="$r.escapeHtml("$member.getFullName()")" />
 				#else
 					<img src="$r.staticLink("images/transparent.gif")" class="$member.getPortraitCssClass()" alt="$r.escapeHtml("$member.getFullName()")" />
 				#end

src/main/java/org/olat/user/UserAvatarMapper.java

@@ -49,7 +49,7 @@ public class UserAvatarMapper implements Mapper {
 	@Override
 	public MediaResource handle(String relPath, HttpServletRequest request) {
 		MediaResource rsrc = null;
-		if(relPath != null && relPath.endsWith(POSTFIX_LARGE) || relPath.endsWith(POSTFIX_SMALL)) {
+		if(relPath != null && (relPath.endsWith(POSTFIX_LARGE) || relPath.endsWith(POSTFIX_SMALL))) {
 			if(relPath.startsWith("/")) {
 				relPath = relPath.substring(1, relPath.length());
 			}