$ git clone -n https://src.fedoraproject.org/rpms/apache-commons-collections.git /var/lib/mock/f40-build-1488739-23846/root/chroot_tmpdir/scmroot/apache-commons-collections
Cloning into '/var/lib/mock/f40-build-1488739-23846/root/chroot_tmpdir/scmroot/apache-commons-collections'...
$ git fetch origin d98cfc309037d32c5aa078f29921f7bd1bb7c116:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/apache-commons-collections
 * [new ref]         d98cfc309037d32c5aa078f29921f7bd1bb7c116 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d98cfc3 Rebuilt for java-21-openjdk as system jdk