$ git clone -n https://src.fedoraproject.org/rpms/perl-Date-Holidays-DE.git /var/lib/mock/f39-build-1437433-32135/root/chroot_tmpdir/scmroot/perl-Date-Holidays-DE
Cloning into '/var/lib/mock/f39-build-1437433-32135/root/chroot_tmpdir/scmroot/perl-Date-Holidays-DE'...
$ git fetch origin 31a7408ed87344789c8c2ce9a00c2542de3a0b94:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Date-Holidays-DE
 * [new ref]         31a7408ed87344789c8c2ce9a00c2542de3a0b94 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 31a7408 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild