$ git clone -n https://src.fedoraproject.org/rpms/yacreader.git /var/lib/mock/f42-build-879391-182018/root/chroot_tmpdir/scmroot/yacreader
Cloning into '/var/lib/mock/f42-build-879391-182018/root/chroot_tmpdir/scmroot/yacreader'...
$ git fetch origin 0cd7fa39871d403a7b58c7986ecc6d98f6b98146:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/yacreader
 * [new ref]         0cd7fa39871d403a7b58c7986ecc6d98f6b98146 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0cd7fa3 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild