$ git clone -n https://src.fedoraproject.org/rpms/apache-commons-lang3.git /var/lib/mock/f40-build-2663019-66969/root/chroot_tmpdir/scmroot/apache-commons-lang3
Cloning into '/var/lib/mock/f40-build-2663019-66969/root/chroot_tmpdir/scmroot/apache-commons-lang3'...
$ git fetch origin 2ff8bcc35891ef8d43c1fd0f6299f5a2ecd998f1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/apache-commons-lang3
 * [new ref]         2ff8bcc35891ef8d43c1fd0f6299f5a2ecd998f1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2ff8bcc Rebuilt for java-21-openjdk as system jdk