diff --git a/src/zcl_abapgit_branch_overview.clas.abap b/src/zcl_abapgit_branch_overview.clas.abap
index 83f8d8234..40c8f104b 100644
--- a/src/zcl_abapgit_branch_overview.clas.abap
+++ b/src/zcl_abapgit_branch_overview.clas.abap
@@ -57,10 +57,10 @@ CLASS zcl_abapgit_branch_overview DEFINITION
         zcx_abapgit_exception .
     METHODS _sort_commits CHANGING ct_commits TYPE ty_commits.
     METHODS _get_1st_child_commit
-      IMPORTING itr_commit_sha1s    TYPE tyt_commit_sha1_range
-      EXPORTING etr_commit_sha1s    TYPE tyt_commit_sha1_range
-                e_1st_commit        TYPE zif_abapgit_definitions=>ty_commit
-      CHANGING  ct_commits          TYPE ty_commits.
+      IMPORTING itr_commit_sha1s TYPE tyt_commit_sha1_range
+      EXPORTING etr_commit_sha1s TYPE tyt_commit_sha1_range
+                e_1st_commit     TYPE zif_abapgit_definitions=>ty_commit
+      CHANGING  ct_commits       TYPE ty_commits.
 
 ENDCLASS.
 
@@ -434,6 +434,8 @@ CLASS zcl_abapgit_branch_overview IMPLEMENTATION.
     FIELD-SYMBOLS: <lsr_commit_sha1> LIKE LINE OF itr_commit_sha1s.
     FIELD-SYMBOLS: <ls_child_commit> TYPE zif_abapgit_definitions=>ty_commit.
 
+    CLEAR: e_1st_commit.
+
 * get all reachable next commits
     ltr_commit_sha1s = itr_commit_sha1s.
     LOOP AT ct_commits ASSIGNING <ls_child_commit> WHERE parent1 IN ltr_commit_sha1s