$ git clone -n https://src.fedoraproject.org/rpms/perl-File-Sync.git /var/lib/mock/f40-build-778306-129860/root/chroot_tmpdir/scmroot/perl-File-Sync
Cloning into '/var/lib/mock/f40-build-778306-129860/root/chroot_tmpdir/scmroot/perl-File-Sync'...
$ git fetch origin fe48cb78c1965d9428b26aab0d0a713661d9a893:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-File-Sync
 * [new ref]         fe48cb78c1965d9428b26aab0d0a713661d9a893 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fe48cb7 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild