Unit test added and changelog updated

Author: HubertPalo

CHANGELOG.rst

@@ -31,6 +31,8 @@ Fixed
   <https://github.com/omni-us/jsonargparse/pull/668>`__)
 - Functions that create types now have ``TypeAlias`` return type to avoid mypy
   errors (`#671 <https://github.com/omni-us/jsonargparse/pull/671>`__).
+- Bug when parsing strings with digits and a starting or ending 'e' (`#672
+  <https://github.com/omni-us/jsonargparse/pull/673>`__).
 
 
 v4.36.0 (2025-01-17)

jsonargparse_tests/test_loaders_dumpers.py

@@ -91,6 +91,12 @@ def test_dump_header_invalid(parser):
         parser.dump_header = True
 
 
+def test_load_value_digits_and_e():
+    with parser_context(load_value_mode="yaml"):
+        assert "e123" == load_value("e123")
+        assert "123e" == load_value("123e")
+
+
 @skip_if_no_pyyaml
 def test_load_value_dash():
     with parser_context(load_value_mode="yaml"):