[nobug] unit test failures from changes for 97407

bundles/org.eclipse.jst.jsp.core/src/org/eclipse/jst/jsp/core/internal/java/XMLJSPRegionHelper.java

diff --git a/bundles/org.eclipse.jst.jsp.core/src/org/eclipse/jst/jsp/core/internal/java/XMLJSPRegionHelper.java b/bundles/org.eclipse.jst.jsp.core/src/org/eclipse/jst/jsp/core/internal/java/XMLJSPRegionHelper.java
index db8c4a8..b76ea3e 100644
--- a/bundles/org.eclipse.jst.jsp.core/src/org/eclipse/jst/jsp/core/internal/java/XMLJSPRegionHelper.java
+++ b/bundles/org.eclipse.jst.jsp.core/src/org/eclipse/jst/jsp/core/internal/java/XMLJSPRegionHelper.java
@@ -135,6 +135,7 @@
 					// this custom tag may define variables
 					this.fTranslator.addTaglibVariables(nameStr, sdRegion);
 				}
+				fTagname = null;
 			}
 			else if (isJSPStartRegion(sdRegion)) {
 				String nameStr = getRegionName(sdRegion);