Expect missing pom-scijava versions to fall back to the newest

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Author: ctrueden

.tests/contract.txt

@@ -26,6 +26,12 @@
 /org.scijava/pom-scijava/45.1.0/net.imglib2/net/imglib2/img/Img.html    /net.imglib2/imglib2/8.0.0/net/imglib2/img/Img.html
 /org.scijava/pom-scijava/45.1.0/net.imglib2/org/scijava/Context.html    /org.scijava/scijava-common/*/org/scijava/Context.html
 
+# A pom-scijava version not on the site (e.g. a SNAPSHOT parent) falls back to
+# the newest one, so `javadoc -link` to a project's parent union always works.
+/org.scijava/pom-scijava/45.2.0-SNAPSHOT/element-list                   /org.scijava/pom-scijava/*/element-list
+/org.scijava/pom-scijava/999.0.0/net/imglib2/img/Img.html               /net.imglib2/imglib2/*/net/imglib2/img/Img.html
+/org.scijava/pom-scijava/999.0.0                                        /org.scijava/pom-scijava/*/
+
 # "latest" floats to the newest release.
 /net.imagej/ij/latest/                                                  /net.imagej/ij/*/
 /net.imagej/ij/latest/ij/ij/ImagePlus.html                              /net.imagej/ij/*/ij/ij/ImagePlus.html