$ git clone -n https://src.fedoraproject.org/rpms/rust-pango.git /var/lib/mock/f39-build-1651273-40489/root/chroot_tmpdir/scmroot/rust-pango
Cloning into '/var/lib/mock/f39-build-1651273-40489/root/chroot_tmpdir/scmroot/rust-pango'...
$ git fetch origin 3f951c7a7358bbd956a40f2a41e9224f8382a03e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pango
 * [new ref]         3f951c7a7358bbd956a40f2a41e9224f8382a03e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3f951c7 Enable the "v1_52" feature