fix issue IDFN7Y，修复 SplitIter reset 后无法重新迭代的问题。

hutool-core/src/main/java/cn/hutool/core/collection/ComputeIter.java

@@ -70,4 +70,12 @@ public abstract class ComputeIter<T> implements Iterator<T> {
 		this.finished = true;
 		this.next = null;
 	}
+
+	/**
+	 * 重置状态，用于再次遍历
+	 */
+	public void resetState() {
+		this.finished = false;
+		this.next = null;
+	}
 }

hutool-core/src/main/java/cn/hutool/core/text/split/SplitIter.java

@@ -105,6 +105,7 @@ public class SplitIter extends ComputeIter<String> implements Serializable {
 		this.finder.reset();
 		this.offset = 0;
 		this.count = 0;
+		resetState();
 	}
 
 	/**

hutool-core/src/test/java/cn/hutool/core/text/split/SplitIterTest.java

@@ -1,9 +1,6 @@
 package cn.hutool.core.text.split;
 
-import cn.hutool.core.text.finder.CharFinder;
-import cn.hutool.core.text.finder.LengthFinder;
-import cn.hutool.core.text.finder.PatternFinder;
-import cn.hutool.core.text.finder.StrFinder;
+import cn.hutool.core.text.finder.*;
 import org.junit.jupiter.api.Test;
 
 import java.util.Arrays;
@@ -169,4 +166,19 @@ public class SplitIterTest {
 
 		assertEquals(Collections.singletonList("test"), result);
 	}
+
+	@Test
+	public void issueIDFN7YTest() {
+		final String text = "a,b,c";
+		final TextFinder finder = new StrFinder(",", false);
+		final SplitIter splitIter = new SplitIter(text, finder, 0, false);
+
+		List<String> firstResult = splitIter.toList(false);
+		assertEquals(3, firstResult.size());
+
+		splitIter.reset();
+		List<String> secondResult = splitIter.toList(false);
+		assertEquals(3, secondResult.size());
+		assertEquals(firstResult, secondResult);
+	}
 }