$ git clone -n https://src.fedoraproject.org/rpms/perl-IO-Interface.git /var/lib/mock/f40-build-2018171-46389/root/chroot_tmpdir/scmroot/perl-IO-Interface
Cloning into '/var/lib/mock/f40-build-2018171-46389/root/chroot_tmpdir/scmroot/perl-IO-Interface'...
$ git fetch origin f5d6a3c456debf828089ff5aeed13b5d6792dc04:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-IO-Interface
 * [new ref]         f5d6a3c456debf828089ff5aeed13b5d6792dc04 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f5d6a3c Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild