IndexOutOfBoundsException in fragment parse #2406

== Java Exception: java.lang.IndexOutOfBoundsException: Index 1 out of bounds for length 0
	at java.base/jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:64)
	at java.base/jdk.internal.util.Preconditions.outOfBoundsCheckIndex(Preconditions.java:70)
	at java.base/jdk.internal.util.Preconditions.checkIndex(Preconditions.java:266)
	at java.base/java.util.Objects.checkIndex(Objects.java:359)
	at java.base/java.util.ArrayList.get(ArrayList.java:427)
	at org.jsoup.parser.HtmlTreeBuilderState$7.inBodyStartTag(HtmlTreeBuilderState.java:401)
	at org.jsoup.parser.HtmlTreeBuilderState$7.process(HtmlTreeBuilderState.java:308)
	at org.jsoup.parser.HtmlTreeBuilder.process(HtmlTreeBuilder.java:249)
	at org.jsoup.parser.HtmlTreeBuilderState$9.anythingElse(HtmlTreeBuilderState.java:1107)
	at org.jsoup.parser.HtmlTreeBuilderState$9.process(HtmlTreeBuilderState.java:1072)
	at org.jsoup.parser.HtmlTreeBuilder.process(HtmlTreeBuilder.java:174)
	at org.jsoup.parser.HtmlTreeBuilderState$12.anythingElse(HtmlTreeBuilderState.java:1247)
	at org.jsoup.parser.HtmlTreeBuilderState$12.process(HtmlTreeBuilderState.java:1206)
	at org.jsoup.parser.HtmlTreeBuilder.process(HtmlTreeBuilder.java:174)
	at org.jsoup.parser.TreeBuilder.stepParser(TreeBuilder.java:124)
	at org.jsoup.parser.TreeBuilder.runParser(TreeBuilder.java:105)
	at org.jsoup.parser.TreeBuilder.parseFragment(TreeBuilder.java:83)
	at org.jsoup.parser.Parser.parseFragmentInput(Parser.java:117)
	at org.jsoup.parser.Parser.parseFragmentInput(Parser.java:102)
	at FragmentHtmlFuzzer.fuzzerTestOneInput(FragmentHtmlFuzzer.java:28)
DEDUP_TOKEN: 74baaf414c6c03f2
== libFuzzer crashing input ==
MS: 2 ManualDict-Custom- DE: "<frameset>"-; base unit: 343fc9b875de60bd1e423fd3792599e8572f159e
0x63,0x6f,0x6c,0x67,0x72,0x6f,0x75,0x70,0x5c,0x76,0x3c,0x66,0x72,0x61,0x6d,0x65,0x73,0x65,0x74,0x3e,0x3e,0x6c,0x0,0x3c,0x0,0x3c,0x64,0x69,0x74,0x6c,0x3e,0x0,0x3c,0x20,0x5c,
colgroup\\v<frameset>>l\000<\000<ditl>\000< \\
artifact_prefix='/tmp/tmpqzien9lb/'; Test unit written to /tmp/tmpqzien9lb/crash-358805f5163c0c2d56e4ee7af3fd5bd1a54fe6e1
Base64: Y29sZ3JvdXBcdjxmcmFtZXNldD4+bAA8ADxkaXRsPgA8IFw=
stat::number_of_executed_units: 323325
stat::average_exec_per_sec:     14696
stat::new_units_added:          3001
stat::slowest_unit_time_sec:    0
stat::peak_rss_mb:              983
reproducer_path='.'; Java reproducer written to ./Crash_358805f5163c0c2d56e4ee7af3fd5bd1a54fe6e1.java