$ git clone -n https://src.fedoraproject.org/rpms/perl-Unix-Mknod.git /var/lib/mock/f42-build-876410-179689/root/chroot_tmpdir/scmroot/perl-Unix-Mknod
Cloning into '/var/lib/mock/f42-build-876410-179689/root/chroot_tmpdir/scmroot/perl-Unix-Mknod'...
$ git fetch origin 0b256403da110c4717f8b2f5fe246efabdf8fbfa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Unix-Mknod
 * [new ref]         0b256403da110c4717f8b2f5fe246efabdf8fbfa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0b25640 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild