$ git clone -n https://src.fedoraproject.org/rpms/perl-File-LibMagic.git /var/lib/mock/f40-build-731937-104586/root/chroot_tmpdir/scmroot/perl-File-LibMagic
Cloning into '/var/lib/mock/f40-build-731937-104586/root/chroot_tmpdir/scmroot/perl-File-LibMagic'...
$ git fetch origin be11161d0dadc1dc1e2cc0f4b45fedeba5917a1e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-File-LibMagic
 * [new ref]         be11161d0dadc1dc1e2cc0f4b45fedeba5917a1e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at be11161 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild