$ git clone -n https://src.fedoraproject.org/rpms/graphite2.git /var/lib/mock/f42-build-3357711-45030/root/chroot_tmpdir/scmroot/graphite2
Cloning into '/var/lib/mock/f42-build-3357711-45030/root/chroot_tmpdir/scmroot/graphite2'...
$ git fetch origin deba28323b0a3b7a3dcfd06df1efc2195b102ed7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/graphite2
 * [new ref]         deba28323b0a3b7a3dcfd06df1efc2195b102ed7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at deba283 Fix to build against GCC 15 (#2340572)