$ git clone -n https://src.fedoraproject.org/rpms/perl-Mail-Box-Parser-C.git /var/lib/mock/f40-build-732827-104937/root/chroot_tmpdir/scmroot/perl-Mail-Box-Parser-C
Cloning into '/var/lib/mock/f40-build-732827-104937/root/chroot_tmpdir/scmroot/perl-Mail-Box-Parser-C'...
$ git fetch origin e315e4a4feba93566281fa88033103515012706f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Mail-Box-Parser-C
 * [new ref]         e315e4a4feba93566281fa88033103515012706f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e315e4a Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild