$ git clone -n https://src.fedoraproject.org/rpms/perl-MooX-Struct.git /var/lib/mock/f45-build-25052-609/root/chroot_tmpdir/scmroot/perl-MooX-Struct
Cloning into '/var/lib/mock/f45-build-25052-609/root/chroot_tmpdir/scmroot/perl-MooX-Struct'...
$ git fetch origin 094482134293fb70acf3695c25dfbe60a017b084:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-MooX-Struct
 * [new ref]         094482134293fb70acf3695c25dfbe60a017b084 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0944821 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild