$ git clone -n https://src.fedoraproject.org/rpms/jackson-jaxrs-providers.git /var/lib/mock/f41-build-1219702-22741/root/chroot_tmpdir/scmroot/jackson-jaxrs-providers
Cloning into '/var/lib/mock/f41-build-1219702-22741/root/chroot_tmpdir/scmroot/jackson-jaxrs-providers'...
$ git fetch origin 8c7607ccf3a4459142e31d7490da24a6820f3b54:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jackson-jaxrs-providers
 * [new ref]         8c7607ccf3a4459142e31d7490da24a6820f3b54 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8c7607c Update to 2.17.1 upstream release