[Bugfix] RONLOG: Do not Discard Continued Lines in RST Fragments (#1062)

* Fixed ::= Fragment::from_rst:  do not discard continued lines

* Fixed ::= test case for Fragment::from_rst

* Create summary of recent changes

---------

Co-authored-by: GitHub Actions <41898282+github-actions[bot]@users.noreply.github.com>

changelog.d/20240109_161556_GitHub_Actions_fragment-from-rst.ron

@@ -0,0 +1,9 @@
+(
+  references: {},
+  changes: {
+    "Fixed": [
+      "Fragment::from_rst:  do not discard continued lines",
+      "test case for Fragment::from_rst",
+    ],
+  },
+)

src/changelog/fragment.rs

@@ -122,6 +122,7 @@ impl Fragment {
 impl crate::FromRst for Fragment {
     fn from_rst(rst: &str) -> Result<Self> {
         let mut category = String::new();
+        let mut change = String::new();
         let mut previous_line = String::new();
         let mut result = Self::default();
 
@@ -146,9 +147,16 @@ impl crate::FromRst for Fragment {
             } else if line.starts_with(|c| "*-".contains(c))
                 && !category.is_empty()
             {
-                if let Some(change) = line.strip_prefix(|c| "*-".contains(c)) {
-                    result.insert(category.trim(), change.trim());
+                if let Some(new_change) =
+                    line.strip_prefix(|c| "*-".contains(c))
+                {
+                    change.append_as_line(new_change);
                 }
+            } else if line.starts_with("  ") && !line.trim().is_empty() {
+                change.append_as_line(line);
+            } else if line.trim().is_empty() && !change.is_empty() {
+                result.insert(category.trim(), change.trim());
+                change.clear();
             }
 
             previous_line = line.to_string();

tests/fragment.rs

@@ -46,6 +46,9 @@ Added
 Fixed
 .....
 
+- another bug ...
+  ... whose description takes two lines
+
 - known bug in `d.rs`_
 
 ";