$ git clone -n https://src.fedoraproject.org/rpms/rust-pango-sys.git /var/lib/mock/f38-build-side-43-rust-devel-1397469-31052/root/chroot_tmpdir/scmroot/rust-pango-sys
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1397469-31052/root/chroot_tmpdir/scmroot/rust-pango-sys'...
$ git fetch origin e084a08f961796ef0ba76edd916b50bc9508911e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pango-sys
 * [new ref]         e084a08f961796ef0ba76edd916b50bc9508911e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e084a08 Update to version 0.18.0; Fixes RHBZ#2224918