commitgraph throws err 500 when commit message contains a pipe

[philfry]

• Gitea version (or commit ref): 1.1.0+5-gdbcd4527
• Git version: 2.12.0
• Operating system: Linux/CentOS7
• Database (use [x]):
  • PostgreSQL
  • MySQL
  • MSSQL
  • SQLite
• Can you reproduce the bug at https://try.gitea.io:
  • Yes: https://try.gitea.io/philtry/commitgraphtest/graph
  • No
  • Not relevant
• Log gist:

[...uters/repo/commit.go:92 Graph()] [E] GetCommitGraph: Failed parsing grap line:* DATA:||... - Should containt 8 datafields

Description

steps to reproduce:

touch dummyfile
git add dummyfile
git commit -m "this is a testcommit | containing a pipe"
git push
# view commitgraph

In models/graph.go in GetCommitGraph(r *git.Repository) (GraphItems, error) calls a git log and uses a custom format using pipes as field separators. Later in graphItemFromString(s string, r *git.Repository) (GraphItem, error) the lines get split by that delimiter and the resulting array is being checked whether or not it has exactly 8 elements.
The easiest solution would be to check whether or not the array has at least 8 elements and merge the 8th to nth elements together.